11
5
   0   0   0   0   1
   0   0   0   0  -1
   0   0   1   0   0
  -1  -1   0   1   0
   1   0   0   0   0
   1   0   0   1   0
  -1  -1   0  -1   0
  -1   1   1   0   0
  -3  -2   3   0   0
   0  -1  -1  -1   0
   0  -1  15  -5   0
inequalities