4
5.0, 1.0,5.0, 1.0,6.0, 3.0,8.0, 1.5,8.0, 4.0,9.0, 6.0,6.0, 5.0,4.5, 6.5,4.0, 4.0,2.0, 3.5,4.0, 3.0
10,10,30,10,30,20,10,20 
10,10,20,10,15,20
20.0, 15.0,30.0, 15.0,35.0, 20.0,30.0, 25.0,20.0, 25.0,15.0, 20.0

4
2.828427, 4.242641,2.121320, 6.363961,4.596194, 6.717514,2.828427, 8.485281,2.121320, 10.606602,0.707107, 7.778175,-1.414214, 7.778175,0.000000, 5.656854,-1.060660, 3.889087,0.707107, 4.949747,
10,20,10,15,20
10,10,20,10,20,30,10,30
10.0, 5.0,20.0, 5.0,25.0, 10.0,20.0, 15.0,10.0, 15.0,5.5, 9.5