3    11    10    10
  0 10  0  0  0  0  0  0  0  0
  0  0  1  0  0  0  0  0  0  0
 10  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  1  0  0  0
  0  0  0  0  0  0  0  1  0  0
  0  0  0  1  0  0  0  0  0  0
  7 10  8  6  9  2  7 10  6  9
  0  0  0  0  0  0  0  0  0  4
  9  8  1  6  4  4  1  7  8  2