18 13 0.4 0.0
 0.0  0.0  0.0
 1.0  0.0  0.0
 1.0  2.0  0.0
 0.0  2.0  0.0
 0.0  0.0  3.0
 1.0  0.0  3.0
 1.0  2.0  3.0
 0.0  2.0  3.0
 0.0  0.5  3.0
 0.0  1.0  3.0
 0.5  1.0  3.0
 0.5  2.0  3.0
 0.75 1.0  3.0
 1.0  0.5  3.0
 1.0  1.0  3.0
 0.75 2.0  2.25
 1.0  0.5  1.5
 1.0  2.0  1.5
1 5 9 15 21 25 32 38 42 46 49 53 56 59
4 3 2 1
1 2 6 5
1 5 9 10 8 4
5 6 13 11 10 9
10 11 12 8
11 13 6 14 15 7 12
3 4 8 12 16 18
7 18 16 12
2 3 18 17
7 15 18
6 2 17 14
15 17 18
15 14 17
