D 1
9 7
   1    1    0    0   -1    0    0
   1    1    0    0    0   -1    0
   1   -1   -1    0    0    1   10
   1   -1    0    0    0    0    7
   1    0    1    0    0    0    0
   1    0    0    1    0    0   -9
   1    0    0   -1    0    0   10
   1    0    0    0    1    0    0
   1    0    0    0    0    1   -1

F 0
2940
