  1.80  -1  -1  -1
  2.00   1  -1  -1
  2.10  -1   1  -1
  2.80   1   1  -1
  1.85  -1  -1   1
  1.75   1  -1   1
  1.75  -1   1   1
  2.45   1   1   1
  1.95  -1   0   0
  2.35   1   0   0
  1.75   0  -1   0
  2.00   0   1   0
  2.10   0   0  -1
  1.80   0   0   1
  1.65   0   0   0
