20 2
0 -10 5 1
-5 -10 3 2
-5 -10 0 2
5 -10 0 2
5 -10 3 2
0 -10 5 2
0 10 5 2
-5 10 3 2
-5 10 0 2
5 10 0 2
5 10 3 2
0 10 5 2
-5 -10 3 1
-5 10 3 2
5 -10 3 1
5 10 3 2
-5 -10 0 1
-5 10 0 2
5 -10 0 1
5 10 0 2