OFF
8 6 0
2 0 2
3 0 -2
3 0 2
2 0 -2
2 2 2
4 2 -2
4 2 2
2 2 -2
3 0 7 4
3 0 3 7
3 6 1 5
3 1 6 2
3 7 1 4
3 2 4 1