3    13     9     9
  0  1  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  1  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  1
  4  9  1 12 12  1  9  1  4
  0  0  0  0  0  0  1  0  0