data/hamilton/graph_structure/hard/graph111.txt

12 32
3 9
11 10
10 9
6 10
8 7
1 2
3 1
5 10
9 8
5 4
11 2
8 10
8 4
8 2
4 1
9 5
4 9
0 6
0 2
1 5
2 3
7 4
3 6
4 2
11 6
1 10
9 0
10 3
6 5
9 1
0 5
11 3