3
1.0000000000000 0.0000000000000
-0.5000000000000 0.8660254037844
-0.5000000000000 0.0000000000000
3
-0.5000000000000 0.0000000000000
-0.5000000000000 -0.8660254037844
1.0000000000000 0.0000000000000