problemas-para-competicao-p…/quase-menor-caminho/input/1

7 9
0 6
0 1 1
0 2 1
0 3 2
0 4 3
1 5 2
2 6 4
3 6 2
4 6 4
5 6 1
4 6
0 2
0 1 1
1 2 1
1 3 1
3 2 1
2 0 3
3 0 2
6 8
0 1
0 1 1
0 2 2
0 3 3
2 5 3
3 4 2
4 1 1
5 1 1
3 0 1
0 0
 9
 6
 1 1
 2 1
 3 2
 4 3
 5 2
 6 4
 6 2
 6 4
 6 1
 6
 2
 1 1
 2 1
 3 1
 2 1
 0 3
 0 2
 8
 1
 1 1
 2 2
 3 3
 5 3
 4 2
 1 1
 1 1
 0 1
 0