polygon/example/input_data/primary/primary_029.txt

0
8
0 0 0 1
0 0 1 0
0 0 -1 0
0 0 0 -1
0 0 1 1
0 0 1 -1
0 0 -1 1
0 0 -1 -1
 
 
 0 0 1
 0 1 0
 0 -1 0
 0 0 -1
 0 1 1
 0 1 -1
 0 -1 1
 0 -1 -1