3    13     7     7
  0  1  0  0  0  0  0
  1  0  0  0  0  0  0
  0  0  0  0  1  0  0
  0  0  0  0  0  1  0
  0  0  1  0  0  0  0
  0  0  0  1  0  0  0
 11 11  9 11  9 11 12