Transform M into row reduced echelon form (rref)

Gauss-Jordan Elimination

Mark first row (*) as next result row
M = * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      011000011010110110110100100000000101010100000100000000000000000000000010000000000000000000000000
      011010010000010010010111001111101011001001101110000000000000000000000100000000000000000000000000
      010010111010000000001101110001010010111111000110000000000000000000001000000000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      010001100000101001011101101010101001101001010011000000000000000001000000000000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      010000110001001100001010011111000000110100000000000000000000100000000000000000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      010100000011110100010001010000001000010100000100000000000010000000000000000000000000000000000000
      010110000101111100101000101000100000000101010001000000000100000000000000000000000000000000000000
      011110001001011111001111001010000001000000000101000000001000000000000000000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      011101110011111011110010110001101010101011001111000100000000000000000000000000000000000000000000
      010100110100100110000010001001010100110101000010001000000000000000000000000000000000000000000000
      011000101001010001000001101010101101001101110110010000000000000000000000000000000000000000000000
Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M = * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      011000011010110110110100100000000101010100000100000000000000000000000010000000000000000000000000
      011010010000010010010111001111101011001001101110000000000000000000000100000000000000000000000000
      010010111010000000001101110001010010111111000110000000000000000000001000000000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      010001100000101001011101101010101001101001010011000000000000000001000000000000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      010000110001001100001010011111000000110100000000000000000000100000000000000000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      010100000011110100010001010000001000010100000100000000000010000000000000000000000000000000000000
      010110000101111100101000101000100000000101010001000000000100000000000000000000000000000000000000
      011110001001011111001111001010000001000000000101000000001000000000000000000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      011101110011111011110010110001101010101011001111000100000000000000000000000000000000000000000000
      010100110100100110000010001001010100110101000010001000000000000000000000000000000000000000000000
      011000101001010001000001101010101101001101110110010000000000000000000000000000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      011000011010110110110100100000000101010100000100000000000000000000000010000000000000000000000000
      011010010000010010010111001111101011001001101110000000000000000000000100000000000000000000000000
      010010111010000000001101110001010010111111000110000000000000000000001000000000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      010001100000101001011101101010101001101001010011000000000000000001000000000000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      010000110001001100001010011111000000110100000000000000000000100000000000000000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      010100000011110100010001010000001000010100000100000000000010000000000000000000000000000000000000
      010110000101111100101000101000100000000101010001000000000100000000000000000000000000000000000000
      011110001001011111001111001010000001000000000101000000001000000000000000000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      011101110011111011110010110001101010101011001111000100000000000000000000000000000000000000000000
      010100110100100110000010001001010100110101000010001000000000000000000000000000000000000000000000
      011000101001010001000001101010101101001101110110010000000000000000000000000000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      001010010000010010010111101111101011001001101110000000000000000000000100100000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      001110001001011111001111101010000001000000000101000000001000000000000000100000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      001101110011111011110010010001101010101011001111000100000000000000000000100000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      001000101001010001000001001010101101001101110110010000000000000000000000100000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      001010010000010010010111101111101011001001101110000000000000000000000100100000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      001110001001011111001111101010000001000000000101000000001000000000000000100000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      001101110011111011110010010001101010101011001111000100000000000000000000100000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      001000101001010001000001001010101101001101110110010000000000000000000000100000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      001010010000010010010111101111101011001001101110000000000000000000000100100000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      001101101110101101101010101101001010101001011001000000000000000000010000000000000000000000000000
      001011000111010011101110010011010101101001011011000000000000000000100000000000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      001110001001011111001111101010000001000000000101000000001000000000000000100000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      001111011011010111010110011111101001100110101000000000100000000000000000000000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      001011000011100111110101100101100101011001111100000010000000000000000000000000000000000000000000
      001101110011111011110010010001101010101011001111000100000000000000000000100000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      001000101001010001000001001010101101001101110110010000000000000000000000100000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000010001010100100100011101111101110011101101010000000000000000000000110000000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      000101110100011011011110101101001111111101011101000000000000000000010010100000000000000000000000
      000011011101100101011010010011010000111101011111000000000000000000100010100000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      000110010011101001111011101010000100010100000001000000001000000000000010000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      000111000001100001100010011111101100110010101100000000100000000000000010100000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      000011011001010001000001100101100000001101111000000010000000000000000010100000000000000000000000
      000101101001001101000110010001101111111111001011000100000000000000000010000000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      000000110011100111110101001010101000011001110010010000000000000000000010000000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000010001010100100100011101111101110011101101010000000000000000000000110000000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      000101110100011011011110101101001111111101011101000000000000000000010010100000000000000000000000
      000011011101100101011010010011010000111101011111000000000000000000100010100000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      000110010011101001111011101010000100010100000001000000001000000000000010000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      000111000001100001100010011111101100110010101100000000100000000000000010100000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      000011011001010001000001100101100000001101111000000010000000000000000010100000000000000000000000
      000101101001001101000110010001101111111111001011000100000000000000000010000000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      000000110011100111110101001010101000011001110010010000000000000000000010000000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000110000110101101101100101000000001010101000001000000000000000000000001000000000000000000000000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000010001010100100100011101111101110011101101010000000000000000000000110000000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      000101110100011011011110101101001111111101011101000000000000000000010010100000000000000000000000
      000011011101100101011010010011010000111101011111000000000000000000100010100000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000100001100001011000010100111110000001101000000000000000000010000000000000000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000101000001011101000100010100000010000101000001000000000001000000000000000000000000000000000000
      000100000011110100010001110000001000010100000100000000000010000000000000100000000000000000000000
      000110000101111100101000001000100000000101010001000000000100000000000000100000000000000000000000
      000110010011101001111011101010000100010100000001000000001000000000000010000000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      000111000001100001100010011111101100110010101100000000100000000000000010100000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      000011011001010001000001100101100000001101111000000010000000000000000010100000000000000000000000
      000101101001001101000110010001101111111111001011000100000000000000000010000000000000000000000000
      000100110100100110000010101001010100110101000010001000000000000000000000100000000000000000000000
      000000110011100111110101001010101000011001110010010000000000000000000010000000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000010001010100100100011101111101110011101101010000000000000000000000110000000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
      000001110100011011011110111101001111111101011101000000000000000000010010110000000000000000000000
      000011011101100101011010010011010000111101011111000000000000000000100010100000000000000000000000
      000001100000101001011101001010101001101001010011000000000000000001000000100000000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000001000011001110110000101001111100000011010000000000000000001000000000000000000000000000000000
      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000001000001011101000100000100000010000101000001000000000001000000000000010000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000010000101111100101000011000100000000101010001000000000100000000000000110000000000000000000000
      000010010011101001111011111010000100010100000001000000001000000000000010010000000000000000000000
      000011101110110101110101100111111010011001101010000000010000000000000000000000000000000000000000
      000011000001100001100010001111101100110010101100000000100000000000000010110000000000000000000000
      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
      000011011001010001000001100101100000001101111000000010000000000000000010100000000000000000000000
      000001101001001101000110000001101111111111001011000100000000000000000010010000000000000000000000
      000000110100100110000010111001010100110101000010001000000000000000000000110000000000000000000000
      000000110011100111110101001010101000011001110010010000000000000000000010000000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
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      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000010001010100100100011101111101110011101101010000000000000000000000110000000000000000000000000
      000010111010000000001101010001010010111111000110000000000000000000001000100000000000000000000000
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      000011010000111001111101011001011001010110011111000001000000000000000000000000000000000000000000
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Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000001101000011000011001011111111011001100101011000000010000000000000001010000000000000000000000
      000001000111001100001110110111101101100111101101000000100000000000000011100000000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
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      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
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      000001000111001100001110110111101101100111101101000000100000000000000011100000000000000000000000
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Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
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      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
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      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
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      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
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      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
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      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000110001001100001010111111000000110100000000000000000000100000000000100000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
      000000101000011000011001010111111011001100101011000000010000000000000001011000000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
      000000011111111100101101010101100001011000111001000010000000000000000011111000000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
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      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000110100011011011110110101001111111101011101000000000000000000010010111000000000000000000000
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      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
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      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
      000000101000011000011001010111111011001100101011000000010000000000000001011000000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
      000000011111111100101101010101100001011000111001000010000000000000000011111000000000000000000000
      000000101001001101000110001001101111111111001011000100000000000000000010011000000000000000000000
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Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000011010110110110100000000000101010100000100000000000000000000000010100000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
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    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
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      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
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      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
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      000000011100000100111100101011111010000011010100000000000000000001001001011000000000000000000000
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      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
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      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
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      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
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      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
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      000000011100000100111100101011111010000011010100000000000000000001001001011000000000000000000000
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      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
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      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000001101100001101011010110010011011110000111000000000000100000001001010000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
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      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
      000000010100110101111000111110101000100110101100000000010000000000001000101000000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
      000000011111111100101101010101100001011000111001000010000000000000000011111000000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
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      000000010000110101101100001010011111000000110100000000000000000100000000000000000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000001101100001101011010110010011011110000111000000000000100000001001010000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000010101000100010111000010000101000001000000000000001000000000000011000000000000000000000000
      000000010100110101111000111110101000100110101100000000010000000000001000101000000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000010110010100010001101001011000000011011110000001000000000000000001011000000000000000000000
      000000011111111100101101010101100001011000111001000010000000000000000011111000000000000000000000
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      000000001000001011100011010000000111011111000101001000000000000000001001000000000000000000000000
      000000001111001010010100100011111011110011110101010000000000000000001011110000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000001010110110110100000100000101010100000100000000000000000000000010100100000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000101100101101100001101101010011101010000111000000000000000000001001110100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000001000110110111111011100011100010111011010000000000000000000011011001000000000000000000000
      000000001011001000110110100111010001101000011110000000000000000000100011111100000000000000000000
      000000001100000100111100101111111010000011010100000000000000000001001001011100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000001101100001101011010110010011011110000111000000000000100000001001010000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000001111111100101101010001100001011000111001000010000000000000000011111100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000001000001011100011010000000111011111000101001000000000000000001001000000000000000000000000
      000000001111001010010100100011111011110011110101010000000000000000001011110000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000001010110110110100000100000101010100000100000000000000000000000010100100000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000101100101101100001101101010011101010000111000000000000000000001001110100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000001000110110111111011100011100010111011010000000000000000000011011001000000000000000000000
      000000001011001000110110100111010001101000011110000000000000000000100011111100000000000000000000
      000000001100000100111100101111111010000011010100000000000000000001001001011100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000001101100001101011010110010011011110000111000000000000100000001001010000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000001111111100101101010001100001011000111001000010000000000000000011111100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000001000001011100011010000000111011111000101001000000000000000001001000000000000000000000000
      000000001111001010010100100011111011110011110101010000000000000000001011110000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
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      000000101100101101100001101101010011101010000111000000000000000000001001110100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000001000110110111111011100011100010111011010000000000000000000011011001000000000000000000000
      000000001011001000110110100111010001101000011110000000000000000000100011111100000000000000000000
      000000001100000100111100101111111010000011010100000000000000000001001001011100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000001100001011000010110111110000001101000000000000000000010000000000010000000000000000000000
      000000001101100001101011010110010011011110000111000000000000100000001001010000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000001111111100101101010001100001011000111001000010000000000000000011111100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000001000001011100011010000000111011111000101001000000000000000001001000000000000000000000000
      000000001111001010010100100011111011110011110101010000000000000000001011110000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000110111111111011010011101010011100101111000000000000000000000101110100000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000100111111110000001011110011011111110001000000000000000000011100011000000000000000000000
      000000000111000001111001110000111110100000110101000000000000000000100100101100000000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000000100000010101100000111101000010111101110001000000000000000001110010000000000000000000000
      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000110111111111011010011101010011100101111000000000000000000000101110100000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000100111111110000001011110011011111110001000000000000000000011100011000000000000000000000
      000000000111000001111001110000111110100000110101000000000000000000100100101100000000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000000100000010101100000111101000010111101110001000000000000000001110010000000000000000000000
      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000110111111111011010011101010011100101111000000000000000000000101110100000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000110101101101100111000000001010101000001000000000000000000000001010000000000000000000000
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      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001100001001001111010111101111001000101011000000000000000000000111010000000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
    * 000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000100111111110000001011110011011111110001000000000000000000011100011000000000000000000000
      000000000111000001111001110000111110100000110101000000000000000000100100101100000000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000100001110011011000010100111110000001101000000000000000010000000000000000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000101000100010111000110000101000001000000000000001000000000000011000100000000000000000000
      000000000100110101111000111010101000100110101100000000010000000000001000101100000000000000000000
      000000000111001100001110111111101101100111101101000000100000000000000011101000000000000000000000
      000000000110010100010001101101011000000011011110000001000000000000000001011100000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
      000000000101100000100111100100111100010101001100000100000000000000001011101100000000000000000000
      000000000100000010101100000111101000010111101110001000000000000000001110010000000000000000000000
      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000010111111111011010001101010011100101111000000000000000000000101110110000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000010101101101100111010000001010101000001000000000000000000000001010010000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
    * 000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000011001100001110111101101101100111101101000000100000000000000011101010000000000000000000
      000000000010010100010001101111011000000011011110000001000000000000000001011110000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
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      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000010111111111011010001101010011100101111000000000000000000000101110110000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000010101101101100111010000001010101000001000000000000000000000001010010000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
    * 000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000011001100001110111101101101100111101101000000100000000000000011101010000000000000000000
      000000000010010100010001101111011000000011011110000001000000000000000001011110000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
      000000000001100000100111100110111100010101001100000100000000000000001011101110000000000000000000
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      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000010000010101101101100111010000001010101000001000000000000000000000001010010000000000000000000
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      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000011001110110000100001111100000011010000000000000000001000000000001000000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000011110100010001100000001000010100000100000000000010000000000000110000000000000000000000
      000000000011010001000100100000100001010000010000000000000100000000000001100000000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000011001100001110111101101101100111101101000000100000000000000011101010000000000000000000
      000000000010010100010001101111011000000011011110000001000000000000000001011110000000000000000000
      000000000011110101100010000110001110010000010010000010000000000000000100101100000000000000000000
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      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000011000011011011110100010100111011011110010000000000000000001100100000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000001111110000010100011010100111100011010000000000000000000100001011000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000001101100010101001000111111110101110100000000000000000000100101111100000000000000000000
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      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
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      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
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      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000001010101101000011101100110100011101011000001000000000000100101110000000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
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      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000001111110000010100011010100111100011010000000000000000000100001011000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000001101100010101001000111111110101110100000000000000000000100101111100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000001010101101000011101100110100011101011000001000000000000100101110000000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
      000000000001100000100111100110111100010101001100000100000000000000001011101110000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000001111110000010100011010100111100011010000000000000000000100001011000000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000001101100010101001000111111110101110100000000000000000000100101111100000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000011000001111001110010111110100000110101000000000000000000100100101110000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
    * 000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000001101000100100000001111100010110101100000000000000100000001110000000000000000000000000
      000000000001011101000100001100000010000101000001000000000001000000000000011000000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000001000100010111000100000101000001000000000000001000000000000011000110000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000001010101101000011101100110100011101011000001000000000000100101110000000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
      000000000001100000100111100110111100010101001100000100000000000000001011101110000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000111110000010100010010100111100011010000000000000000000100001011001000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000101100010101001001111111110101110100000000000000000000100101111101000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
    * 000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000101000100100000000111100010110101100000000000000100000001110000001000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
      000000000000100000100111100111111100010101001100000100000000000000001011101111000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000111110000010100010010100111100011010000000000000000000100001011001000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000101100010101001001111111110101110100000000000000000000100101111101000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
    * 000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000101000100100000000111100010110101100000000000000100000001110000001000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
      000000000000100000100111100111111100010101001100000100000000000000001011101111000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000111110000010100010010100111100011010000000000000000000100001011001000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000101100010101001001111111110101110100000000000000000000100101111101000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000100100101110111010111100100010101100000000000000000000001110100100000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000110101101100001110011111000000110100000000000000000100000000000100000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000101000100100000000111100010110101100000000000000100000001110000001000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000110101101000010010110110110100110001000000000010000000100100011110000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000110101111000111000101000100110101100000000010000000000001000101110000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000110100011011110100110000110000100111000010000000000000100000000010000000000000000000
      000000000000100000100111100111111100010101001100000100000000000000001011101111000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000010011100101000000001100101010000101000000000000000000111001100111000000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000011011011110110011001111111101011101000000000000000000010010111110000000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
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      000000000000111111110000001001110011011111110001000000000000000000011100011010000000000000000000
    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000001010011100000111101100011111000101000000000000000100011100011110000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000010111010100001001001111001001011101000000000000100000010010011011000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
      000000000000011111010111101110001111001010111101000100000000000000010111110101000000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
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    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000001010011100000111101100011111000101000000000000000100011100011110000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000010111010100001001001111001001011101000000000000100000010010011011000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
      000000000000011111010111101110001111001010111101000100000000000000010111110101000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
    * 000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
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      000000000000001010011100000111101100011111000101000000000000000100011100011110000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000010111010100001001001111001001011101000000000000100000010010011011000000000000000000
      000000000000011101000100001101000010000101000001000000000001000000000000011001000000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000010000111101010010011111110000100101000000000100000000100101001110000000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000010101101000011100100110100011101011000001000000000000100101110001000000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
      000000000000011111010111101110001111001010111101000100000000000000010111110101000000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
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Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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    * 000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
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      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
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      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000001101000100001101100010000101000001000000000001000000000000011001100000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000000101101000011100000110100011101011000001000000000000100101110001100000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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    * 000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000001010011100000111101100011111000101000000000000000100011100011110000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000001101000100001101100010000101000001000000000001000000000000011001100000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000000101101000011100000110100011101011000001000000000000100101110001100000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
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      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000001000001001001111010101101111001000101011000000000000000000000111010010000000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
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      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
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    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000001110011011000000100111110000001101000000000000000010000000000010000000000000000000
      000000000000001010011100000111101100011111000101000000000000000100011100011110000000000000000000
      000000000000001111001001010011000010100011100101000000000000001000100100100110000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000001101000100001101100010000101000001000000000001000000000000011001100000000000000000
      000000000000001010011000011011000101101011000000000000000010000000111000000100000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000001010001000110001011011111001011101000000010000000000010100110100000000000000000000
      000000000000001101110111001111010011000111011000000000100000000000100111000100000000000000000000
      000000000000000101101000011100000110100011101011000001000000000000100101110001100000000000000000
      000000000000001011101011111101000011101111010110000010000000000000111100011000000000000000000000
      000000000000001111010111101110101111001010111101000100000000000000010111110101100000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000011100101000000101100101010000101000000000000000000111001100111100000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
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      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000001111001110011111110100000110101000000000000000000100100101111000000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
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      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
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      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000111101111111111111001010100111010000000000000000101010010010010000000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000111101011100011010000100000111111000000000010000001110110001000000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
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      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
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      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000111101111111111111001010100111010000000000000000101010010010010000000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000111101011100011010000100000111111000000000010000001110110001000000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000000111111011001001001110110010100010000000010000000001011010111000000000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000101101000011100000110100011101011000001000000000000100101110001100000000000000000
      000000000000000110011000000101010110100100101001000010000000000001110010010100000000000000000000
      000000000000000010100100010110111010000001000010000100000000000001011001111001100000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000011100101000000101100101010000101000000000000000000111001100111100000000000000000
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      000000000000100010000011110001000110010100001110000000000000000001010010010110100000000000000000
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      000000000000001101110011111000010101001011111111000000000000000001001110001100000000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
    * 000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000111101111111111111001010100111010000000000000000101010010010010000000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000111010100001001101111001001011101000000000000100000010010011011100000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000111101011100011010000100000111111000000000010000001110110001000000000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000100010111000101000101000001000000000000001000000000000011000111000000000000000000
      000000000000000111111011001001001110110010100010000000010000000001011010111000000000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000101101000011100000110100011101011000001000000000000100101110001100000000000000000
      000000000000000110011000000101010110100100101001000010000000000001110010010100000000000000000000
      000000000000000010100100010110111010000001000010000100000000000001011001111001100000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000011100101000000101100101010000101000000000000000000111001100111100000000000000000
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      000000001000000000111100101101101010000011010100000000000000000001001001011110010000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
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      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
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      000000000000001001110011111000000101001011111111000000000000000001001110001100010000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
    * 000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000011101111111111101001010100111010000000000000000101010010010010010000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000011010100001001111111001001011101000000000000100000010010011011110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000011101011100011000000100000111111000000000010000001110110001000010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000011111011001001011110110010100010000000010000000001011010111000010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000010011000000101000110100100101001000010000000000001110010010100010000000000000000
      000000000000000010100100010110111010000001000010000100000000000001011001111001100000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000011100101000000101100101010000101000000000000000000111001100111100000000000000000
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    * 000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
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      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000011101111111111101001010100111010000000000000000101010010010010010000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000011010100001001111111001001011101000000000000100000010010011011110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000011101011100011000000100000111111000000000010000001110110001000010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000011111011001001011110110010100010000000010000000001011010111000010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000010011000000101000110100100101001000010000000000001110010010100010000000000000000
      000000000000000010100100010110111010000001000010000100000000000001011001111001100000000000000000
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      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000011101111111111101001010100111010000000000000000101010010010010010000000000000000
      000000000000000010111010101011010111101000011010000000000000001001101010101010000000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000011010100001001111111001001011101000000000000100000010010011011110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000011101011100011000000100000111111000000000010000001110110001000010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000011111011001001011110110010100010000000010000000001011010111000010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000010011000000101000110100100101001000010000000000001110010010100010000000000000000
      000000000000000010100100010110111010000001000010000100000000000001011001111001100000000000000000
      000000000000000010101100000101101000010111101110001000000000000000001110010010000000000000000000
      000000000000000010100010000110101010011011101011010000000000000000101000001110000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000001110010101011100111100011101011000000000000000000111101000011000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
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      000000100000000001000101110011011000001101010000000000000000000010010010111100110000000000000000
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      000000000000001001110011111000000101001011111111000000000000000001001110001100010000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
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      000000000000000001010010010011100101010011101000000000000000001010100100100100000000000000000000
      000000000000000001100101011000101101111110011001000000000000010011001001001110000000000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000001110000111101110100011111011011000010000000000010111100011010010000000000000000
      000000000000000001001100101110001000111010110000000100000000000010010111110111100000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
    * 000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
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      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
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      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
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      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000001010010010011100101010011101000000000000000001010100100100100000000000000000000
      000000000000000001100101011000101101111110011001000000000000010011001001001110000000000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000001110000111101110100011111011011000010000000000010111100011010010000000000000000
      000000000000000001001100101110001000111010110000000100000000000010010111110111100000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000100000000001000101110011011000001101010000000000000000000010010010111100110000000000000000
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      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000011101000111000110010111011110010000000000000000011001110001110000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000001010010010011100101010011101000000000000000001010100100100100000000000000000000
      000000000000000001100101011000101101111110011001000000000000010011001001001110000000000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000001101000011100010110100011101011000001000000000000100101110001110000000000000000
      000000000000000001110000111101110100011111011011000010000000000010111100011010010000000000000000
      000000000000000001001100101110001000111010110000000100000000000010010111110111100000000000000000
      000000000000000001000100111101011010101100011100001000000000000011000000011100000000000000000000
      000000000000000001001010111110011000100000011001010000000000000011100110000000000000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000110010101011101111100011101011000000000000000000111101000011001000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000111100101101101010000011010100000000000000000001001001011110010000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000111001110011110110100000110101000000000000000000100100101111001000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000101011001001111100101111111100000000000000000010011100011000101000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000110011111000001101001011111111000000000000000001001110001100011000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010101000111000111010111011110010000000000000000011001110001110001000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000101000011100011110100011101011000001000000000000100101110001111000000000000000
      000000000000000000110000111101111100011111011011000010000000000010111100011010011000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000110010101011101111100011101011000000000000000000111101000011001000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
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      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000111100101101101010000011010100000000000000000001001001011110010000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000111001110011110110100000110101000000000000000000100100101111001000000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000101011001001111100101111111100000000000000000010011100011000101000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000110011111000001101001011111111000000000000000001001110001100011000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010101000111000111010111011110010000000000000000011001110001110001000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
    * 000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000101000011100011110100011101011000001000000000000100101110001111000000000000000
      000000000000000000110000111101111100011111011011000010000000000010111100011010011000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000110010101011101111100011101011000000000000000000111101000011001000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
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      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000000100000101011001001111100101111111100000000000000000010011100011000101000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
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      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010101000111000111010111011110010000000000000000011001110001110001000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000111100110001001101110010101111000000000000100011011100010101110000000000000000
      000000000000000000110111110101110111001110111110000000000001000001001110010101100000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000111101010010111111110000100101000000000100000000100101001110100000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000101000011100011110100011101011000001000000000000100101110001111000000000000000
      000000000000000000110000111101111100011111011011000010000000000010111100011010011000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000010111110011001010011101110010000000000000010011110100001101000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000011001110101001111111101001101000000000000010010000000010000011000000000000000
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      000000000000100000001110010001011001010001100101000000000000010001010101010110100000000000000000
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      000000000000001000010110100000101000110101100110000000000000010010000111000010010000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000011001101001101000001100110110000000000000110000010101011011111000000000000000
      000000000000000000010010101101010010110000100111000000000001010010000111011011101000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000011000001010011010001110111100000000000100010011101100000000101000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000010101100101011001100001000010000010000000010001110101010100010000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000010111110011001010011101110010000000000000010011110100001101000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
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      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000011001110101001111111101001101000000000000010010000000010000011000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
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      000000000000100000001110010001011001010001100101000000000000010001010101010110100000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000010110100000101000110101100110000000000000010010000111000010010000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
    * 000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000011001101001101000001100110110000000000000110000010101011011111000000000000000
      000000000000000000010010101101010010110000100111000000000001010010000111011011101000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000011000001010011010001110111100000000000100010011101100000000101000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000010101100101011001100001000010000010000000010001110101010100010000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000010111110011001010011101110010000000000000010011110100001101000000000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
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      000000000010000000011100101011010011011110101100000000000000010011101101100001000000000000000000
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      000000000000100000001110010001011001010001100101000000000000010001010101010110100000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000010110100000101000110101100110000000000000010010000111000010010000000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000010010010011101101010011101000000000000000001010100100100100001000000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000011001101001101000001100110110000000000000110000010101011011111000000000000000
      000000000000000000010010101101010010110000100111000000000001010010000111011011101000000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000011000001010011010001110111100000000000100010011101100000000101000000000000000
      000000000000000000010111000101010101000001000000000000001000000000000011000111010000000000000000
      000000000000000000010011110001101100001001010000000000010000000010010100110110010000000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000010101100101011001100001000010000010000000010001110101010100010000000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000111110011001110011101110010000000000000010011110100001101000100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000001101111000011110010001110111000000000000000011110111101001100000000000000000
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      000000100000000000000101110011010000001101010000000000000000000010010010111100111000000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
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      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000001100101011010111011110101100000000000000010011101101100001000100000000000000
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      000000000000100000001110010001011001010001100101000000000000010001010101010110100000000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000110100000101100110101100110000000000000010010000111000010010100000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000001000001010011110001110111100000000000100010011101100000000101100000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000000101100101011101100001000010000010000000010001110101010100010100000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000111110011001110011101110010000000000000010011110100001101000100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
    * 000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000001000001010011110001110111100000000000100010011101100000000101100000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000000101100101011101100001000010000010000000010001110101010100010100000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000000010000000001100101011010111011110101100000000000000010011101101100001000100000000000000
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      000000000000100000001110010001011001010001100101000000000000010001010101010110100000000000000000
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      000000000000001000000110100000101100110101100110000000000000010010000111000010010100000000000000
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      000000000000000010001101100000011111000101101011000000000000010000000111000000000000000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000001000001010011110001110111100000000000100010011101100000000101100000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
      000000000000000000000100110111000110001100100111000000100000000001101001001000000000000000000000
      000000000000000000001101000100111011011101110010000001000000010011101100111111110000000000000000
      000000000000000000000101100101011101100001000010000010000000010001110101010100010100000000000000
      000000000000000000001100101110000000111010110000000100000000000010010111110111101000000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000001010111110010000100000011001010000000000000011100110000000001000000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000111110011001110011101110010000000000000010011110100001101000100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
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    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
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      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
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      000000000000000000000100101101010111010001000100000001000000100011111001100100001100000000000000
      000000000000000000000101100101011101100001000010000010000000010001110101010100010100000000000000
      000000000000000000000101000111101100110110000110000100000000110010000010101100010100000000000000
      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000111110011001110011101110010000000000000010011110100001101000100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000100010001110010011101000001000000000000110011100010110010011100000000000000
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      000000000000000010000100001001110011001001011101000000000000100000010010011011111100000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100101011000100101111110011001000000000000010011001001001110001000000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
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      000000000000000000000100101101010111010001000100000001000000100011111001100100001100000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000111110011001110011101110010000000000000010011110100001101000100000000000000
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      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
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    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000111000111011011101111001000000000000000000110011100011100010000000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000111000101010001000001000000000000001000000000000011000111010100000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
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      000000000000000000000100111101010010101100011100001000000000000011000000011100001000000000000000
      000000000000000000000011010111111100101100101111010000000000110011110011011011110100000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000011110011001100011101110010000000000000010011110100001101000110000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
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    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
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      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
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      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000011000111011001101111001000000000000000000110011100011100010010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
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      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
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      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000011000101010011000001000000000000001000000000000011000111010110000000000000
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      000000000000000000000001000111101110110110000110000100000000110010000010101100010110000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000011110011001100011101110010000000000000010011110100001101000110000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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      000000000000001000000010100000101110110101100110000000000000010010000111000010010110000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100001011000100111111110011001000000000000010011001001001110001010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000011000111011001101111001000000000000000000110011100011100010010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000011000101010011000001000000000000001000000000000011000111010110000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000001100101011111100001000010000010000000010001110101010100010110000000000000
      000000000000000000000001000111101110110110000110000100000000110010000010101100010110000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000011110011001100011101110010000000000000010011110100001101000110000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
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      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100001011000100111111110011001000000000000010011001001001110001010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000011000111011001101111001000000000000000000110011100011100010010000000000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000010101101010110110000100111000000000001010010000111011011101100000000000000
      000000000000000000000011011011110010011011001101000000000010000010111000000110010000000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000011000101010011000001000000000000001000000000000011000111010110000000000000
      000000000000000000000011110001101000001001010000000000010000000010010100110110010100000000000000
      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000001100101011111100001000010000010000000010001110101010100010110000000000000
      000000000000000000000001000111101110110110000110000100000000110010000010101100010110000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
      000000000000000000000011010111111100101100101111010000000000110011110011011011110100000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000000110100010101110010111010000000000000010101101000010001010100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
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    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
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      000000000000000000000001101010001111011111101111000000000001010100011011000111111110000000000000
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
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      000000000000000000000001100101011111100001000010000010000000010001110101010100010110000000000000
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Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100001011000100111111110011001000000000000010011001001001110001010000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
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    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
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      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000001101010001111011111101111000000000001010100011011000111111110000000000000
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000110110110001100110011000000000010000000100001000101010000110000000000000
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      000000000000000000000001000111101110110110000110000100000000110010000010101100010110000000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
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      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100001011000100111111110011001000000000000010011001001001110001010000000000000
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      000000000000000000001001101001101100001100110110000000000000110000010101011011111100000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000011000111011001101111001000000000000000000110011100011100010010000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000001101010001111011111101111000000000001010100011011000111111110000000000000
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000001100011110010000010001010000000000100100011111001011011010000000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
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      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000001100101011111100001000010000010000000010001110101010100010110000000000000
      000000000000000000000001000111101110110110000110000100000000110010000010101100010110000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
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Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000000110100010101110010111010000000000000010101101000010001010100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
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    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
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      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
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      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000110111000010111110101010000000000100101111000001100011001110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000110110110001100110011000000000010000000100001000101010000110000000000000
      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000000110001101111011101100010000010000000011101001101101100001000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000000110100010101110010111010000000000000010101101000010001010100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000100111100010110001110000000000000000001110101010000100100100000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000011100100111110001111011000000000000100010010101001011100000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000010110001001101110111010000000000000101111000000000010100100000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000111111101110110010011011000000000000100111011100010001001100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000110011000111100110001110000000000000011000100011100110011010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000111101011100110000010110000000000000111100101101100011100010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000010100110001111100100000000000000000001100111000111000011111000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000111110111111100011001111000000000001011000100011111111100000000000000000
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000110111000010111110101010000000000100101111000001100011001110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000110110110001100110011000000000010000000100001000101010000110000000000000
      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000000110001101111011101100010000010000000011101001101101100001000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000100000000000000000000000000000000000000000000000100000000000000000000000
      001000000000000000000000110100010101110010111010000000000000010101101000010001010100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000100111100010110001110000000000000000001110101010000100100100000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000011100100111110001111011000000000000100010010101001011100000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000010110001001101110111010000000000000101111000000000010100100000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000111111101110110010011011000000000000100111011100010001001100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000110011000111100110001110000000000000011000100011100110011010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000111101011100110000010110000000000000111100101101100011100010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
      000000000000000000000000111110111111100011001111000000000001011000100011111111100000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000010100110001111100100000000000000000001100111000111000011111000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000110111000010111110101010000000000100101111000001100011001110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000110110110001100110011000000000010000000100001000101010000110000000000000
      000000000000000000000000110111000100001100100111000000100000000001101001001000000010000000000000
      000000000000000000000000101101010101010001000100000001000000100011111001100100001110000000000000
      000000000000000000000000110001101111011101100010000010000000011101001101101100001000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000111101010000101100011100001000000000000011000000011100001010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000011110111111100011001111000000000001011000100011011111100000000000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000011001011101010010111111000000000001010110001001111011000100000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000011100100111110001111011000000000000100010010101001011100000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000010110001001101110111010000000000000101111000000000010100100000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
      000000000000000000000000111110111111100011001111000000000001011000100011111111100000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000010100110001111100100000000000000000001100111000111000011111000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000010011101010110010001011000001000001111011011010011011101110000000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000011110111111100011001111000000000001011000100011011111100000000000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000011001011101010010111111000000000001010110001001111011000100000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000011100100111110001111011000000000000100010010101001011100000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000010110001001101110111010000000000000101111000000000010100100000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
      000000000000000000000000111110111111100011001111000000000001011000100011111111100000000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000010100110001111100100000000000000000001100111000111000011111000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000010011101010110010001011000001000001111011011010011011101110000000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000011110111111100011001111000000000001011000100011011111100000000000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000010000000000000000000000000000000000000000000000010000000000000000000000
      000010000000000000000000010001110000011101000001000000000000110011100010110010011110000000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000011001011101010010111111000000000001010110001001111011000100000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000011100100111110001111011000000000000100010010101001011100000000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000010110001001101110111010000000000000101111000000000010100100000000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010010011101001010011101000000000000000001010100100100100001100000000000000
      000000000000000000000001010100110000111100100000000000000000001100111000111000011110000000000000
      000000000000000000000000111110111111100011001111000000000001011000100011111111100000000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000010100110001111100100000000000000000001100111000111000011111000000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000011100101011110100000101000000000010000100100100011010000010000000000000
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000010011101010110010001011000001000001111011011010011011101110000000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000010011011110001010100110000100000000111110111010010100001000000000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000010000100101000011100111010000000000110101101111000111100110000000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000001110111111000011001111000000000001011000100011011111100000100000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000001110000111101000001000000000000110011100010110010011110100000000000
      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000001001011101110010111111000000000001010110001001111011000100100000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000001100100111010001111011000000000000100010010101001011100000100000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
      000000000000000000000000101110111111000011001111000000000001011000100011111111100000100000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000001110111111000011001111000000000001011000100011011111100000100000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000001001011101110010111111000000000001010110001001111011000100100000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000001100100111010001111011000000000000100010010101001011100000100000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
      000000000000000000000000101110111111000011001111000000000001011000100011111111100000100000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000001110111111000011001111000000000001011000100011011111100000100000000000
      001000000000000000000000001010101010010001110101000000000001001101001011101110110100000000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000001000000000000000000000000000000000000000000000001000000000000000000000
      000000100000000000000000001001011101110010111111000000000001010110001001111011000100100000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000001100100111010001111011000000000000100010010101001011100000100000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000001101111000000101000001000000000001000000000000011001111010000000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000001001110001001001011101000000000000100000010010011011111110000000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000001100010111000010111001000000000000011111110001110110010100000000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
      000000000000000000000000101110111111000011001111000000000001011000100011111111100000100000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000001001111101011101100101000000000101110111100010011100101110000000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000001000001110000101010111000000010001011100101011010101100110000000000000
      000000000000000000000000001001111011101111101000000000100001011001001010110111100010000000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000001111010000111110101101000010000001000101101110010011101000000000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000110000001000101110000000000000011001001101111110100110110100000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
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      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000101011010011101011000000000000010100100110110000001111100100000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
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      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
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      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
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      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
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      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
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      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000101010110001001100000000000000111110011000110000110101100100000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000100100101010001010010000000010011011000001111001111100100100000000000
      000000000000000000000000000101010000111011101101000000100011011101101110101101100000100000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000110000001000101110000000000000011001001101111110100110110100000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000101110110100110111010000000000011010010101101100001000110000000000000
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      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
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      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
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      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
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      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
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      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
      000000000000000000000000100010010100010111001010000000000011011100000111100101100010000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000101010110001001100000000000000111110011000110000110101100100000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000100100101010001010010000000010011011000001111001111100100100000000000
      000000000000000000000000000101010000111011101101000000100011011101101110101101100000100000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000110000001000101110000000000000011001001101111110100110110100000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000001110000111101000001000000000000110011100010110010011110100000000000
      000001000000000000000000000100101011010100000101000000000010000100100100010010000010100000000000
      000000100000000000000000000101110110100110111010000000000011010010101101100001000110000000000000
      000000010000000000000000000100000000000000000000000000000000000000000000000100000000000000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000000110001001001110111010000000000000101111000000000010100100100000000000
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      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000101011010011101011000000000000010100100110110000001111100100000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
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      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000100110000011100100000000000000000001100111000111000011110100000000000
      000000000000000000000000100010010100010111001010000000000011011100000111100101100010000000000000
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      000000000000000000000000001100101011010100000101000000000010000100100100011010000010100000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
    * 000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000100110001011100100000000000000000001100111000111000011111100000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000101010110001001100000000000000111110011000110000110101100100000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000100100101010001010010000000010011011000001111001111100100100000000000
      000000000000000000000000000101010000111011101101000000100011011101101110101101100000100000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000010000001010101110000000000000011001001101111110100110110110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000001110000111101000001000000000000110011100010110010011110100000000000
      000001000000000000000000000000101011000100000101000000000010000100100100010010000010110000000000
      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000010000000000000000000000000000000000000000000000010000000000000000000
      000000000010000000000000000010001001011110111010000000000000101111000000000010100100110000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100010010100010111001010000000000011011100000111100101100010000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
    * 000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
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      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000010000001010101110000000000000011001001101111110100110110110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000101011000100000101000000000010000100100100010010000010110000000000
      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
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      000000000010000000000000000010001001011110111010000000000000101111000000000010100100110000000000
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      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
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      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100010010100010111001010000000000011011100000111100101100010000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
    * 000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000010010100010111001010000000000011011100000111000101100010000000000000
      001000000000000000000000000010000001010101110000000000000011001001101111110100110110110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000101011000100000101000000000010000100100100010010000010110000000000
      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
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      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
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      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000011100011010011011001000000000001100100001110011100000010000000000000
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      000000000000000000000010000011101001110011101000000000000000001010100100100100001100100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100010010100010111001010000000000011011100000111100101100010000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000011101010010010001011000001000001111011011010011011101110100000000000
      000000000000000000000000000011111011101010101000000010000011000001001010001001101010100000000000
      000000000000000000000000000011011110101010100110000100000000111110111010010100001000100000000000
      000000000000000000000000000011101111001111010011001000000001011011100011100011101010000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
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      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
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      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000001101001111101010001000000001001100010010001000111000110000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000001100011011101100000000000001000001100111011111111001000100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
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      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000001100000111100000011000001001001111101000101000000101010100000000000
      000000000000000000000000000001110001000100100000000010001011000111010101010010101110100000000000
      000000000000000000000000000001010100000100101110000100001000111000100101001111001100100000000000
      000000000000000000000000000001100101100001011011001000001001011101111100111000101110000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000001101001111101010001000000001001100010010001000111000110000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000001100011011101100000000000001000001100111011111111001000100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000001100000111100000011000001001001111101000101000000101010100000000000
      000000000000000000000000000001110001000100100000000010001011000111010101010010101110100000000000
      000000000000000000000000000001010100000100101110000100001000111000100101001111001100100000000000
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Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000001110110110110111010000000000011010010101101100001000110010000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000001000000000000000000000000000000000000000000000001000000000000000000
      000000000000100000000000000001010001010001010100000000000001111111111111101110101100000000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000000001010011010001000100000000000011000100100100000011111000100000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000001011010001101011000000000000010100100110110000001111100110000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000001101001111101010001000000001001100010010001000111000110000000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000001100011011101100000000000001000001100111011111111001000100000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
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      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000001010110011001100000000000000111110011000110000110101100110000000000
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      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000001010000101011101101000000100011011101101110101101100000110000000000
      000000000000000000000000000001100000111100000011000001001001111101000101000000101010100000000000
      000000000000000000000000000001110001000100100000000010001011000111010101010010101110100000000000
      000000000000000000000000000001010100000100101110000100001000111000100101001111001100100000000000
      000000000000000000000000000001100101100001011011001000001001011101111100111000101110000000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000000110110111110111010000000000011010010101101100001000110011000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
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      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
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      000000000000000000000010000000100011010101100000000000001000001100111011111111001000101000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000100000110100000011000001001001111101000101000000101010101000000000
      000000000000000000000000000000110001001100100000000010001011000111010101010010101110101000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000100101101001011011001000001001011101111100111000101110001000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000110000110101000001000000000000110011100010110010011110101000000000
      000001000000000000000000000000101011000100000101000000000010000100100100010010000010110000000000
      000000100000000000000000000000110110111110111010000000000011010010101101100001000110011000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
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      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000101001110101010001000000001001100010010001000111000110001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000100011010101100000000000001000001100111011111111001000101000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000100000110100000011000001001001111101000101000000101010101000000000
      000000000000000000000000000000110001001100100000000010001011000111010101010010101110101000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000100101101001011011001000001001011101111100111000101110001000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000110000110101000001000000000000110011100010110010011110101000000000
      000001000000000000000000000000101011000100000101000000000010000100100100010010000010110000000000
      000000100000000000000000000000110110111110111010000000000011010010101101100001000110011000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000010001011001010100000000000001111111111111101110101100001000000000
      000000000000010000000000000000100000000000000000000000000000000000000000000000100000000000000000
      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000111100010110111100000000000010011011010101101100010110100000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000101001110101010001000000001001100010010001000111000110001000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000100011010101100000000000001000001100111011111111001000101000000000
      000000000000000000000001000000110000001100100000000000000000001100111000111000011110110000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000101011000100000101000000000010000100100100011010000010110000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000100101000001010010000000010011011000001111001111100100110000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000100000110100000011000001001001111101000101000000101010101000000000
      000000000000000000000000000000110001001100100000000010001011000111010101010010101110101000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000100101101001011011001000001001011101111100111000101110001000000000
      000000000000000000000000000000100101100011100111010000000000110101101111000111100110100000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000011010001000100101000000000010001000011100101010011101000000000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000010001011001010100000000000001111111111111101110101100001000000000
      000000000000010000000000000000010001001100100000000000000000001100111000111000111111110000000000
      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000011000111001110001000000001001101110101001111111011001111000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000010010011001000000000000001000000000000011000111010111011000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000011010001000100101000000000010001000011100100010011101000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000010100001101110010000000010011010100110111110111111011000000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000010001111000100011000001001001110001111101111000110101011000000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000010100100101111011001000001001010001000100000000110001111000000000
      000000000000000000000000000000010100101111000111010000000000111001010111111111111001010000000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000011010001000100101000000000010001000011100101010011101000000000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000010001011001010100000000000001111111111111101110101100001000000000
      000000000000010000000000000000010001001100100000000000000000001100111000111000111111110000000000
      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000011000111001110001000000001001101110101001111111011001111000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000010010011001000000000000001000000000000011000111010111011000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000011010001000100101000000000010001000011100100010011101000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
    * 000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000010100001101110010000000010011010100110111110111111011000000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000010001111000100011000001001001110001111101111000110101011000000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000010100100101111011001000001001010001000100000000110001111000000000
      000000000000000000000000000000010100101111000111010000000000111001010111111111111001010000000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000011110111001000010000000001011011010011000011110100110000000000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000011010001000100101000000000010001000011100101010011101000000000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000010001011001010100000000000001111111111111101110101100001000000000
      000000000000010000000000000000010001001100100000000000000000001100111000111000111111110000000000
      000000000000001000000000000000010011011001000100000000000011000100100100000011111000101000000000
      000000000000000100000000000000010000000000000000000000000000000000000000000000010000000000000000
      000000000000000010000000000000011010000101011000000000000010100100110110000001111100111000000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000011000111001110001000000001001101110101001111111011001111000000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000010010011001000000000000001000000000000011000111010111011000000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000011110111001000010000000001011011010011000111110100110000000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000011010001000100101000000000010001000011100100010011101000000000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000110001001100100000000000000000001100111000111000011111110000000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000010110010001100000000000000111110011000110000110101100111000000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000010100001101110010000000010011010100110111110111111011000000000000
      000000000000000000000000000000010000100011101101000000100011011101101110101101100000111000000000
      000000000000000000000000000000010001111000100011000001001001110001111101111000110101011000000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000010100001100101110000100001000111000100101001111001100101000000000
      000000000000000000000000000000010100100101111011001000001001010001000100000000110001111000000000
      000000000000000000000000000000010100101111000111010000000000111001010111111111111001010000000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001110111101000010000000001011011010011000011110100110000100000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000001010001100100101000000000010001000011100101010011101000100000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001110111101000010000000001011011010011000111110100110000100000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000110010101100000000000000111110011000110000110101100111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000100001001110010000000010011010100110111110111111011000100000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000100001000101110000100001000111000100101001111001100101100000000
      000000000000000000000000000000000100100001111011001000001001010001000100000000110001111100000000
      000000000000000000000000000000000100101011000111010000000000111001010111111111111001010100000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001110111101000010000000001011011010011000011110100110000100000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000001010001100100101000000000010001000011100101010011101000100000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001110111101000010000000001011011010011000111110100110000100000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
    * 000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000110010101100000000000000111110011000110000110101100111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000100001001110010000000010011010100110111110111111011000100000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000100001000101110000100001000111000100101001111001100101100000000
      000000000000000000000000000000000100100001111011001000001001010001000100000000110001111100000000
      000000000000000000000000000000000100101011000111010000000000111001010111111111111001010100000000

Increment next result row.
M =   010000000000000000000000000000001110111101000010000000001011011010011000011110100110000100000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000001010001100100101000000000010001000011100101010011101000100000000
      000000100000000000000000000000000111110010011010000000000011011110010101011001011001101000000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001100000101111110000000000010100110110001010001100010000000000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001101011010011100000000000010010111101101010100001001010000000000
      000000000000000000010000000000000100000000000000000000000000000000000000000000000100000000000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001110111101000010000000001011011010011000111110100110000100000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000110010101100000000000000111110011000110000110101100111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000100001001110010000000010011010100110111110111111011000100000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000100001000101110000100001000111000100101001111001100101100000000
      000000000000000000000000000000000100100001111011001000001001010001000100000000110001111100000000
      000000000000000000000000000000000100101011000111010000000000111001010111111111111001010100000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001010111111000010000000001011011010011000011110100110000110000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000100000000000000000000000000011110000011010000000000011011110010101011001011001101010000000
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      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001010111111000010000000001011011010011000111110100110000110000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001010111111000010000000001011011010011000011110100110000110000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001010111111000010000000001011011010011000111110100110000110000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
    * 000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001010111111000010000000001011011010011000011110100110000110000000
      001000000000000000000000000000001011111011111000000000001011001111110000101111110010110000000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000001010001100100101000000000010001000011100101010011101000100000000
      000000100000000000000000000000000011110000011010000000000011011110010101011001011001101010000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001010101110001000000000001000000110011111011001000100000000000000
      000000000010000000000000000000000011110000110010000000001000101001011111011001100000110000000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000011011101000100000000000011000100100100000011111000101100000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001010000001011000000000000010100100110110000001111100111100000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000010000000000000000000000000000000000000000000000010000000000000
      000000000000000000000010000000000010011101000000000000001000000000000011000111010111011100000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001010111111000010000000001011011010011000111110100110000110000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001010001100100101000000000010001000011100100010011101000100000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001010101110001000000000001000000110011111011011000100000000000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001001101100011000000000001100111100110110101001011110001110000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000001100111111010000000000100101101010011011111110101010100000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000001100111010010000000001111011010011001011111001100001110000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000001001010100100000000000100110111100010000101010100010010000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001001101100011000000000001100111100110110101001011110001110000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000001111001100001000000000000111111011010001010000001011000000000
      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000001100111111010000000000100101101010011011111110101010100000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000001100111010010000000001111011010011001011111001100001110000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000001001010100100000000000100110111100010000101010100010010000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001001101100011000000000001100111100110110101001011110001110000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000001100111111010000000000100101101010011011111110101010100000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000001100111010010000000001111011010011001011111001100001110000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000001011101010100000000000001111111111111101110101100001100000000
      000000000000010000000000000000000001001000100000000000000000001100111000111000111111110100000000
      000000000000001000000000000000000001001010100100000000000100110111100010000101010100010010000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001001011000011100000000000010010111101101010100001001010010000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000001000000000000000000000000000000000000000000000001000000000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100001001000100000000000000000001100111000111000011111110100000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000001111100100011000001001001110001111101111000110101011100000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001000101101011000000000001100111100110110101001011110001111000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000000100110111010000000000100101101010011011111110101010101000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000000100110010010000000001111011010011001011111001100001111000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000111101100011000001001001110001111101111000110101011101000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001000101101011000000000001100111100110110101001011110001111000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
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      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000000100110111010000000000100101101010011011111110101010101000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000000100110010010000000001111011010011001011111001100001111000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
    * 000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000111101100011000001001001110001111101111000110101011101000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
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      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000101000100010000000001100101001011110011000001010111000000000
      001000000000000000000000000000001000101101011000000000001100111100110110101001011110001111000000
      000100000000000000000000000000000000100000000000000000000000000000000000010000000000100000000000
      000010000000000000000000000000000000111000100001000000000000111111011010001010000001011001000000
      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000000100110111010000000000100101101010011011111110101010101000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000111001101000000000001111110101011001011111101000111110000000
      000000000010000000000000000000000000100110010010000000001111011010011001011111001100001111000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000111101110001000000001001101110101001111111011001111100000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000101000100010000000001100101001011110111000001010111000000000
      000000000000000000000000010000000000100000000000000000000000000000000000000000000000100000000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000111001101000000000001111110101011001011101101000111110000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000111101100011000001001001110001111101111000110101011101000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000100011111011001000001001010001000100000000110001111110000000
      000000000000000000000000000000000000101001000111010000000000111001010111111111111001010110000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000011111001100000000100011100010110100100111100001100101000000
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      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000011110000101000000101100101000110111110010001000000010000000
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      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000011010011100000000101010110011000111010010111001000000000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000011110000101000000101100101000110111110000001000000010000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000011010001110000001101010101100010011010101010101100001000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
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      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
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      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000011110000101000000101100101000110111110010001000000010000000
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      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000011010011100000000101010110011000111010010111001000000000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
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      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000011110000101000000101100101000110111110000001000000010000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000011010001110000001101010101100010011010101010101100001000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000011111001100000000100011100010110100100111100001100101000000
      000001000000000000000000000000001000011011000101000000000101111011011010101100110001111010000000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000010000000000000000000000000000000000000100000000010000000000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000011110000101000000101100101000110111110010001000000010000000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000011100010100000000000001111111111111101110101100001101000000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000010110111000000000000101010111110000000111010000000010000000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000011001011100000000000010010111101101010100001001010011000000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000011010011100000000101010110011000111010010111001000000000000
      000000000000000000000100000000000000010111100000000000000111110011000110000110101110111110000000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000011011000101000000000101111011011010100100110001111010000000
      000000000000000000000000000100000000010000000000000000000000000000000000000000000000010000000000
      000000000000000000000000000010001000011110000101000000101100101000110111110000001000000010000000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010010111100000000000000111110011000110000110101100111110000000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000011010001110000001101010101100010011010101010101100001000000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000001111101100000000100011100010110100100111100001100101100000
      000001000000000000000000000000001000001011100101000000000101111011011010101100110001111010100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000001110100101000000101100101000110111110010001000000010100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000001100110100000000000001111111111111101110101100001101100000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000001001111100000000000010010111101101010100001001010011100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000001010111100000000101010110011000111010010111001000000100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000001011100101000000000101111011011010100100110001111010100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000001110100101000000101100101000110111110000001000000010100000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000001010101110000001101010101100010011010101010101100001100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000001111101100000000100011100010110100100111100001100101100000
      000001000000000000000000000000001000001011100101000000000101111011011010101100110001111010100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000001110100101000000101100101000110111110010001000000010100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000001100110100000000000001111111111111101110101100001101100000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000001001111100000000000010010111101101010100001001010011100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000001010111100000000101010110011000111010010111001000000100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000001011100101000000000101111011011010100100110001111010100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000001110100101000000101100101000110111110000001000000010100000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000001010101110000001101010101100010011010101010101100001100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000001111001111000000101111110100110000110101101010000100000000
      001000000000000000000000000000001000001010110101000000101111100001011000000100111110110011000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000001111101100000000100011100010110100100111100001100101100000
      000001000000000000000000000000001000001011100101000000000101111011011010101100110001111010100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000001110100101000000101100101000110111110010001000000010100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000001000000000000000000000000000000000000001000000001000000000
      000000000000100000000000000000000000001100110100000000000001111111111111101110101100001101100000
      000000000000010000000000000000000000001001100000000000000000001100111000111000111111110101000000
      000000000000001000000000000000000000001011100100000000000100110111100010000101010100010011000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000001001111100000000000010010111101101010100001001010011100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000001010111100000000101010110011000111010010111001000000100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000001010100000000000001111110011000101000001111011100010000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000001111001111000000101111110100110000010101101010000100000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000001011100101000000000101111011011010100100110001111010100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000001110100101000000101100101000110111110000001000000010100000
      000000000000000000000000000001000000001000000000000000000000000000000000000000000000001000000000
      000000000000000000000000000000100000001001100000000000000000001100111000111000011111110101000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000001010101110000001101010101100010011010101010101100001100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000001010101110000100001000111000100101001111001100101110000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000001110101010010000100011100100111001010010011001101010000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000100111101000000111100100000000111000010010001000010000000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000000100011110000000110000110110000011010000011010100011100000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000000101010111000000111111111100000000000101110011000100100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000111000110000000010010101011001000011001010111001011100000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000000100111101000000111100100000000111100010010001000010000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000101010111000000111111111100000000000111110011000100100000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000000101011000010000110000110000001110100101100010101100000000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000100111101000000111100100000000111000010010001000010000000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000000100011110000000110000110110000011010000011010100011100000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000000101010111000000111111111100000000000101110011000100100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000111000110000000010010101011001000011001010111001011100000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000000100111101000000111100100000000111100010010001000010000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000101010111000000111111111100000000000111110011000100100000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000000101011000010000110000110000001110100101100010101100000000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000100111101000000111100100000000111000010010001000010000000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000111101101000000100011011101101110111101100000011100000000
      000010000000000000000000000000000000000100011110000000110000110110000011010000011010100011100000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000111111110000000000010100110110001010001100010000010000000
      000000000100000000000000000000001000000101010111000000111111111100000000000101110011000100100000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000111000110000000010010101011001000011001010111001011100000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000100000000000000000000000000000000000000010000000100000000
      000000000000000010000000000000001000000110011000000000000101010111110000000111010000000010100000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
      000000000000000000000100000000000000000111000000000000000111110011000110000110101110111110100000
      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000000100111101000000111100100000000111100010010001000010000000
      000000000000000000000000010000000000000111101101000000100011011101101110101101100000011100000000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000101010111000000111111111100000000000111110011000100100000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000100000000000000000000000000000000000000000000000100000000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000111000000000000000111110011000110000110101100111110100000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100111101101000000100011011101101110101101100000111100000000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000100010110001000101010001100101010101101010001000010000000
      000000000000000000000000000000000000000101011000010000110000110000001110100101100010101100000000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000011111101000000100011011101101110111101100000011100010000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000011101110000000000010100110110001010001100010000010010000
      000000000100000000000000000000001000000001000111000000111111111100000000000101110011000100110000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000011010110000000010010101011001000011001010111001011110000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
      000000000000000000000100000000000000000011010000000000000111110011000110000110101110111110110000
      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000011111101000000100011011101101110101101100000011100010000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000001000111000000111111111100000000000111110011000100110000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000011010000000000000111110011000110000110101100111110110000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100011111101000000100011011101101110101101100000111100010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000001001000010000110000110000001110100101100010101100010000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000011111101000000100011011101101110111101100000011100010000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000011101110000000000010100110110001010001100010000010010000
      000000000100000000000000000000001000000001000111000000111111111100000000000101110011000100110000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000011010110000000010010101011001000011001010111001011110000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
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      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
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      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000011111101000000100011011101101110101101100000011100010000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000001000111000000111111111100000000000111110011000100110000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000011010000000000000111110011000110000110101100111110110000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100011111101000000100011011101101110101101100000111100010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
    * 000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000001001000010000110000110000001110100101100010101100010000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000001000111000000111100110101101111110011000101110101000000
      000100000000000000000000000000000000000011111101000000100011011101101110111101100000011100010000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000001010111000000100111110000111101110010010101101001000000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000011101110000000000010100110110001010001100010000010010000
      000000000100000000000000000000001000000001000111000000111111111100000000000101110011000100110000
      000000000010000000000000000000000000000001111111000000101100000111110111110010101100110011000000
      000000000001000000000000000000000000000011110010000000010011010100110111110110111011001110000000
      000000000000100000000000000000000000000011010110000000010010101011001000011001010111001011110000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000001001110000000111001100111110000100101000010000110100000
      000000000000000000000100000000000000000011010000000000000111110011000110000110101110111110110000
      000000000000000000000010000000000000000001010010000000011100100111110010110110000000100100000000
      000000000000000000000001000000000000000001000000000000000000000000000000000000000001000001000000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000011111101000000100011011101101110101101100000011100010000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000001000111000000111111111100000000000111110011000100110000
      000000000000000000000000000001000000000011110010000000010011010100110111110111111011001110000000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000011010000000000000111110011000110000110101100111110110000
      000000000000000000000000000000000001000001000000000000000000000000000000000000000000000001000000
      000000000000000000000000000000000000100011111101000000100011011101101110101101100000111100010000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001011110010000000010011010100110111110111111011000110000000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000001011100000001111001111000100100100010101110100111100000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000001011100000100011011101100010010111000110111101000000000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000001001000010000110000110000001110100101100010101100010000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010110101000000100011011101101110111101100000011100011000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000000011111000000100111110000111101110010010101101001001000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000110111000000101100000111110111110010101100110011001000
      000000000001000000000000000000000000000010111010000000010011010100110111110110111011001110001000
      000000000000100000000000000000000000000010011110000000010010101011001000011001010111001011111000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010011000000000000111110011000110000110101110111110111000
      000000000000000000000010000000000000000000011010000000011100100111110010110110000000100100001000
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010110101000000100011011101101110101101100000011100011000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010111010000000010011010100110111110111111011001110001000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010011000000000000111110011000110000110101100111110111000
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010110101000000100011011101101110101101100000111100011000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010111010000000010011010100110111110111111011000110001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000001111001111000100100100010101110100111101000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000010100000100011011101100010010111000110111101000001000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010110101000000100011011101101110111101100000011100011000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000000011111000000100111110000111101110010010101101001001000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000110111000000101100000111110111110010101100110011001000
      000000000001000000000000000000000000000010111010000000010011010100110111110110111011001110001000
      000000000000100000000000000000000000000010011110000000010010101011001000011001010111001011111000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010011000000000000111110011000110000110101110111110111000
      000000000000000000000010000000000000000000011010000000011100100111110010110110000000100100001000
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010110101000000100011011101101110101101100000011100011000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010111010000000010011010100110111110111111011001110001000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010011000000000000111110011000110000110101100111110111000
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010110101000000100011011101101110101101100000111100011000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010111010000000010011010100110111110111111011000110001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
    * 000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000001111001111000100100100010101110100111101000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000010100000100011011101100010010111000110111101000001000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Increment next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010110101000000100011011101101110111101100000011100011000
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000010111000000010110101111101101011011001010111100100000
      000000100000000000000000000000000000000000011111000000100111110000111101110010010101101001001000
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000110111000000101100000111110111110010101100110011001000
      000000000001000000000000000000000000000010111010000000010011010100110111110110111011001110001000
      000000000000100000000000000000000000000010011110000000010010101011001000011001010111001011111000
      000000000000010000000000000000000000000010010010000000010011011000001111001111000100110011000000
      000000000000001000000000000000000000000000010110000000010111100011010101110010101111010101000000
      000000000000000100000000000000000000000000010000000000000000000000000000000000010000000100010000
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010011000000000000111110011000110000110101110111110111000
      000000000000000000000010000000000000000000011010000000011100100111110010110110000000100100001000
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010110101000000100011011101101110101101100000011100011000
      000000000000000000000000001000001000000000010111000000010110101111101101010011001010111100100000
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010111010000000010011010100110111110111111011001110001000
      000000000000000000000000000000100000000010010010000000010011011000001111001111100100110011000000
      000000000000000000000000000000010000000000010000000000000000000000000000000000000000000100010000
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010011000000000000111110011000110000110101100111110111000
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010110101000000100011011101101110101101100000111100011000
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010111010000000010011010100110111110111111011000110001000
      000000000000000000000000000000000000000100010000000000000000000000000000000000000000000000010000
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000010100000001111001111000100100100010101110100111101000
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000010100000100011011101100010010111000110111101000001000
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101110000000010011010100110111110110111011001110001100
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000110000000010011011000001111001111000100110011000100
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000100000000000000000000000000000000010000000100010100
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010001100000000000111110011000110000110101110111110111100
      000000000000000000000010000000000000000000001110000000011100100111110010110110000000100100001100
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010101110000000010011010100110111110111111011001110001100
      000000000000000000000000000000100000000010000110000000010011011000001111001111100100110011000100
      000000000000000000000000000000010000000000000100000000000000000000000000000000000000000100010100
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001100000000000111110011000110000110101100111110111100
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101110000000010011010100110111110111111011000110001100
      000000000000000000000000000000000000000100000100000000000000000000000000000000000000000000010100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101110000000010011010100110111110110111011001110001100
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000110000000010011011000001111001111000100110011000100
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000100000000000000000000000000000000010000000100010100
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010001100000000000111110011000110000110101110111110111100
      000000000000000000000010000000000000000000001110000000011100100111110010110110000000100100001100
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010101110000000010011010100110111110111111011001110001100
      000000000000000000000000000000100000000010000110000000010011011000001111001111100100110011000100
      000000000000000000000000000000010000000000000100000000000000000000000000000000000000000100010100
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001100000000000111110011000110000110101100111110111100
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101110000000010011010100110111110111111011000110001100
      000000000000000000000000000000000000000100000100000000000000000000000000000000000000000000010100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000000101101000000111100100000000111000010010001000010010000
      001000000000000000000000000000001000000000001111000000111100110101101111110011000101110101001000
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001110000000110000110110000011010000011010100011110000
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100110000000000010100110110001010001100010000010011000
      000000000100000000000000000000001000000000001111000000111111111100000000000101110011000100111000
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101110000000010011010100110111110110111011001110001100
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000110000000010011011000001111001111000100110011000100
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000100000000000000000000000000000000010000000100010100
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001110000000010001000011011010100011110010010101100000
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000110000000111001100111110000100101000010000110101000
      000000000000000000000100000000000000000010001100000000000111110011000110000110101110111110111100
      000000000000000000000010000000000000000000001110000000011100100111110010110110000000100100001100
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101101000000111100100000000111100010010001000010010000
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001111000000111111111100000000000111110011000100111000
      000000000000000000000000000001000000000010101110000000010011010100110111110111111011001110001100
      000000000000000000000000000000100000000010000110000000010011011000001111001111100100110011000100
      000000000000000000000000000000010000000000000100000000000000000000000000000000000000000100010100
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001100000000000111110011000110000110101100111110111100
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101110000000010011010100110111110111111011000110001100
      000000000000000000000000000000000000000100000100000000000000000000000000000000000000000000010100
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010100000000000000000000000000000000000000000000000100
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000110001000101010001100101010101101010001000010010000
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Swap pivot row and next result row; Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
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      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
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      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
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      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
    * 000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
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      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
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      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
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      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
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      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
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      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
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      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
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      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
    * 000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
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      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
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      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
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      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
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      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
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    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Highlight next pivot row and column
Find first row with leftmost bit set starting from next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
      000010000000000000000000000000000000000000001000000000110000110110000011010000011010100011110010
      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
      000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
      000000000000000000000000000000000000010000100000000000000000000000000000000000000000000000100000
      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
    * 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Increment next result row.
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
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      000001000000000000000000000000001000000000000011000000010110101111101101011011001010111100100100
      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
      000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
      000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
      000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
      000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
      000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
      000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
      000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
      000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
      000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
      000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
      000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
      000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
      000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
      000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
      000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
      000000000000000000000000001000001000000000000011000000010110101111101101010011001010111100100100
      000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
      000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
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      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
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      000000000000000000000000000000000010000010001010000000000111110011000110000110101100111110111110
      000000000000000000000000000000000001000000001000000000000000000000000000000000000000000001001000
      000000000000000000000000000000000000100010100001000000100011011101101110101101100000111100011100
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      000000000000000000000000000000000000001010101000000000010011010100110111110111111011000110001110
      000000000000000000000000000000000000000100000010000000000000000000000000000000000000000000010110
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      000000000000000000000000000000000000000000010010000000000000000000000000000000000000000000000110
      000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000010
      000000000000000000000000000000000000000000000000010000110000110000001110100101100010101100011000
      000000000000000000000000000000000000000000000000001000101010001100101010101101010001000010010010
      000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Clear pivot column.
Add pivot row to all other rows with bit set in pivot column
M =   010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
      001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
      000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
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      000000100000000000000000000000000000000000001011000000100111110000111101110010010101101001001100
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      000000001000000000000000000000001000000010100000000000000010100110110001010001100010000010011010
      000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
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      000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
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      000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
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      000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
      000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
      000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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      000000000000000000000000000000000000000001001000000000000000000000000000000000000000000000001000
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      000000000000000000000000000000000000000000000000000010001011001011101101101010110001011000000000
      000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
      000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

Done.
M = 010000000000000000000000000000001000000000101011000000111100100000000111000010010001000010010010
    001000000000000000000000000000001000000000001001000000111100110101101111110011000101110101001010
    000100000000000000000000000000000000000010100001000000100011011101101110111101100000011100011100
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    000000010000000000000000000000000000000000100000000000000000000000000000000100000000010000100000
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    000000000100000000000000000000001000000000001001000000111111111100000000000101110011000100111010
    000000000010000000000000000000000000000000100011000000101100000111110111110010101100110011001100
    000000000001000000000000000000000000000010101000000000010011010100110111110110111011001110001110
    000000000000100000000000000000000000000010001010000000010010101011001000011001010111001011111100
    000000000000010000000000000000000000000010000000000000010011011000001111001111000100110011000110
    000000000000001000000000000000000000000000000010000000010111100011010101110010101111010101000100
    000000000000000100000000000000000000000000000010000000000000000000000000000000010000000100010110
    000000000000000010000000000000001000000010001000000000000101010111110000000111010000000010110000
    000000000000000001000000000000001000000000000000000000000000000000000000000000001000000000000000
    000000000000000000100000000000001000000010001000000000010001000011011010100011110010010101100010
    000000000000000000010000000000000000000010000000000000000000000000000000000000000100000010000000
    000000000000000000001000000000001000000000000000000000111001100111110000100101000010000110101010
    000000000000000000000100000000000000000010001010000000000111110011000110000110101110111110111110
    000000000000000000000010000000000000000000001000000000011100100111110010110110000000100100001110
    000000000000000000000001000000000000000000001000000000000000000000000000000000000001000001001000
    000000000000000000000000100000001000000000101011000000111100100000000111100010010001000010010010
    000000000000000000000000010000000000000010100001000000100011011101101110101101100000011100011100
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    000000000000000000000000000100000000000000100000000000000000000000000000000000000000010000100000
    000000000000000000000000000010001000000000001001000000111111111100000000000111110011000100111010
    000000000000000000000000000001000000000010101000000000010011010100110111110111111011001110001110
    000000000000000000000000000000100000000010000000000000010011011000001111001111100100110011000110
    000000000000000000000000000000010000000000000010000000000000000000000000000000000000000100010110
    000000000000000000000000000000000100000010000000000000000000000000000000000000000000000010000000
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    000000000000000000000000000000000000000000000000000100011011101100010010111000110111101000001100
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    000000000000000000000000000000000000000000000000000001111001111000100100100010101110100111101100
    000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001

See also: