3DG1
8
10 80 -30
10 80 20
10 0 20
10 0 -30
-10 0 -30
-10 0 20
-10 80 20
-10 80 -30
4 0 1 2 3 0
4 4 5 6 7 0
4 1 6 5 2 0
4 3 4 7 0 0
4 7 6 1 0 0
