data/connectivity/graph_structure/medium/graph140.txt

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