OFF
12 8 0
0 2 1
2 2 1
2 0 1
0 2 -1
2 2 -1
2 0 -1
1 1 1
1 1 -1
0 1 1
0 1 -1
1 0 1
1 0 -1
4 3 0 1 4
6 8 6 10 2 1 0
4 9 8 0 3
6 9 3 4 5 11 7
4 5 4 1 2
4 9 7 6 8
4 11 5 2 10
4 11 10 6 7