data/flow/graph_structure/easy/graph135.txt

7 15
0 5 3
0 2 1
0 6 4
1 4 4
2 6 1
3 4 4
3 1 4
3 2 8
3 6 2
3 0 4
4 3 1
4 1 2
4 0 8
6 5 7
6 3 3
2 5
1