6 21
1 1 0.0
1 2 0.07197380776496776
1 3 0.0
1 4 0.0
1 5 0.0
1 6 0.0
2 2 0.0
2 3 0.22088207253868686
2 4 0.0
2 5 0.0
2 6 0.0
3 3 0.0
3 4 1.249398874041858
3 5 0.0
3 6 0.0
4 4 0.0
4 5 0.34058567136333207
4 6 0.0
5 5 0.0
5 6 2.078065453194515
6 6 0.0