1
8
-3/1 1/1 1/1
-3/1 1/1 1/2
-3/1 1/2 1/2
-3/1 1/2 1/1
3/1 1/2 1/1
3/1 1/2 1/2
3/1 1/1 1/2
3/1 1/1 1/1