OFF
#  cube.off
#  A cube
8 24 0
-1 -1 -1
1 -1 -1
-1 1 -1
1 1 -1
-1 -1 1
 1 -1 1
-1 1 1
 1 1 1
3   0 2 1
3   2 3 1
3   1 3 5
3   3 7 5
3   2 6 3
3   6 7 3
3   5 7 4
3   7 6 4
3   4 6 0
3   6 2 0
3   4 0 1
3   4 1 5
3   0 3 1
3   2 3 0
3   1 7 5
3   3 7 1
3   2 7 3
3   6 7 2
3   5 7 6
3   6 4 5
3   4 6 2
3   4 2 0
3   5 0 1
3   4 0 5