4
13
0.0 1.0 1.0 2.0 2.5 3.0 3.0 4.0 4.5 5.0 5.0 6.0 6.0
8
-1.0 -1.0 0.0 1.0
-0.8 -0.7 0.4 1.0
-0.1 0.2 0.8 1.0
0.5 0.5 0.9 3.0
0.2 0.7 0.1 4.5
-0.4 0.9 -0.5 0.5
0.0 0.0 0.0 1.0
0.0 1.0 0.0 1.0