12 12
   0    1    0    0    0   -1    0    0    0    0    0    0
   0    0    1    0    0   -1    0    0    0    0    0    0
   0    0    0    1    0   -1    0    0    0    0    0    0
   0    0    0    0    1   -1    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    1    0    0    0
   1    0    0    0    0    0    0    0    0    0    1  -17
   1    0    0    0    0    0    0    0    0    1    0    0
   1    0    0    0    0    0    0    0    0   50   -1   50
   1    0    0    0    0    1    0    0    0  -50    0    0
   1    0    0    0    0   -1    0    0    0    0    0    1
   1    0    0    0    0   -1    1    0    0    0    0   -1
8 8
   1    0    0    0    0    1    0   50
   1    0    0    0    1    0    0   50
   1    0    0    1    0    0    0   50
   1    0    0    0    0   -1    1   -1
   1    0    0    0   -1    0    1   -1
   1    0    0   -1    0    0    1   -1
   1    0    0    0    0    0    1  -51
   1    0    0    0    0    0    0    1
