3DG1
12
0 10 0
-20 0 -20
-80 0 20
-80 10 0
-80 0 -20
20 0 0
-100 0 0
-20 0 -80
0 10 -80
20 0 -80
0 0 -100
0 0 20
4 3 0 1 4 111
4 8 0 5 9 111
3 4 6 3 111
3 6 2 3 111
4 0 8 7 1 111
4 0 3 2 11 111
3 10 7 8 111
3 9 10 8 111
3 11 5 0 111