4
1.0 1.0 0.0
4.0 1.0 0.0
1.0 2.0 0.0
3.0 4.0 0.0
0.35

4
1.0 1.0 0.0
4.0 1.0 0.0
1.0 2.0 0.0
3.0 4.0 0.0
0.45