3    17     7     7
  0  0  1  0  0  0  0
  0 16 16  0  0  0  0
  1  2  1  0  0  0  0
  0  0  0  0  1  0  0
  0  0  0  0  0  0  1
  6 12  0  4 11  1  2
  0  0  0  1  0  0  0