16
0 -2 2   0 0 0
1 0 1   10 30 0
0 1 0   0 70 0
-1 2 -2   -10 90 0
1 2 -2   0 20 0
-2 1 -3   40 -40 0
0 1 -1   80 30 0
0 0 -1   60 10 0
3 -1 0   50 0 0
1 -3 1   20 10 0
0 -2 2   0 80 0
-4 0 3   -30 150 0
2 3 4   -60 220 0
0 0 3   -20 200 0
4 -3 1   0 160 0
0 0 0   0 80 0