>>writegraph3d planar <<
1 0 0 0 11 10 4
2 0 0 0 10 5 6 12
3 0 0 0 10 12 8 4
4 0 0 0 1 3 9 5
5 0 0 0 11 4 9 2
6 0 0 0 2 9 8 13
7 0 0 0 13 8 12
8 0 0 0 3 7 6 9
9 0 0 0 4 8 6 5
10 0 0 0 1 11 2 3
11 0 0 0 1 5 10
12 0 0 0 13 7 3 2
13 0 0 0 7 12 6
0
