matrix field=11 rows=12 cols=12
  0  0  1  0  0  0  0  0  0  0  0  0
  2 10 10  0  0  0  0  0  0  0  0  0
  7  8  1  0  0  0  0  0  0  0  0  0
  0  0  0  0  1  0  0  0  0  0  0  0
  0  0  0  0  0  0  1  0  0  0  0  0
  0  0  0  0  0  0  0  1  0  0  0  0
  0  0  0  1  0  0  0  0  0  0  0  0
  0  0  0  0  0  0  0  0  0  0  1  0
  1  3  3  7  6  6  9  7  1  0  9  0
  3  8  4  2  8  1  1 10  0  1  0  0
  0  0  0  0  0  1  0  0  0  0  0  0
  3  6  5  7  2  3  2  7  0  0  1  1