D 1
12 7
   1    2   -3    0    5    0    3
   1    1   -1    7    0    0  -12
   1   -4   -7  -21    0    0  -31
   1   -3    2    0    0   -7    5
   1    1    0    7    0    0  -12
   1   -2    3    0   -5    0    1
   1   -7   -2  -42    0    0    2
   1  -26    4 -161    0    0   41
   1    3   -2    0    0    7    1
   1    1    1    6    0    0    4
   1    4   -1    0    0    9    9
   1   -1    0   -6    0    0   -3
F 0
-1
