3    13    16    16
  0  1  0  0  0  0  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  0
  0  0  0  0  1  0  0  0  0  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  0  0  0  0  0  0  1  0  0  0  0  0  0  0
  0  0  0  0  0  0  0  0  0  1  0  0  0  0  0  0
  1  0  0  0  0  0  0  0  0  0  0  0  0  0  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  0  0  0  0  0  0  1  0  0
  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  1
  7  8 11  3  4 12  0 11 12  0  7  8  4  4  5  3
  6  7  9 10 10  7  2  9  9  0 11  0  8  0  0  5
  8 11 11  4 11 11  5  4  4 10  2  0  8  7 10  5
  0  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0
  3  3 10  0 11  0  1  6  7 11  9 11  9  2  1 10
  6  0  9  6  5 10  1  6  2 11 11 11 11  5 11 10