3    17     7     7
  0  1  0  0  0  0  0
  1  0  0  0  0  0  0
  0  0  0  1  0  0  0
  0  0  1  0  0  0  0
  0  0  0  0  0  1  0
  0  0  0  0  1  0  0
 12 12 14 14 10 10 16