data/hamilton/graph_structure/hard/graph130.txt

13 31
9 4
8 1
2 3
5 7
8 9
3 12
6 2
4 10
12 7
0 4
9 7
9 10
7 11
8 10
9 1
6 12
9 12
3 0
11 2
4 1
11 0
6 3
0 6
7 0
7 8
0 9
5 9
3 5
1 11
10 0
1 6