OFF
13 16
0 -1 0
0 1 .1
-2 0 .2
1 0 .4
2 0 0
4 0 0
2 2 .1
0 3 0
-2 2 .1
-4 0 0
-2 -2 .1
0 -3 0
2 -2 .1
3 0 1 2
3 0 3 1
3 0 4 3
3 3 4 1
3 4 12 5
3 4 5 6
3 4 6 1
3 1 6 7
3 1 7 8
3 1 8 2
3 2 8 9
3 2 9 10
3 2 10 0
3 0 10 11
3 0 11 12
3 0 12 4