1  1  1   1   0
  1  2  1   1   0
  1  3  1   1   0
  1  4  1   1   0
  2  3  3   0   1
  2  4  3   0   1
  2  5  3   0   1
  2  6  3   0   1
  3  6  6  -1  -1
  3  7  6  -1  -1
  3  8  6  -1  -1
  3  9  6  -1  -1