section 1
0 0 1
0 0 0.5
0 0 0
section 2
2 0.5 0.9
2 0.4 0.01
2 0 -0.1
section 3
4 1 0.81
4 0.8 0.01
4 0 -0.16
section 4
6 1.2 0.78
6 1.1 0.01
6 0 -0.14
section 5
8 1.2 0.76
8 1.1 0.01
8 0 -0.1
section 6
8 1 0.75
8 0.8 0.01
8 0 0