1 1 2
1 2 4
1 3 3.5
1 4 3
1 5 4
1 6 3.5
1 7 3.5
1 8 3
1 9 2.5
1 10 4
1 11 4
1 12 4
2 13 2
3 14 0.5
3 15 1
3 16 4
3 17 3
3 18 4
3 19 4
3 20 2.5
