data/hamilton/graph_structure/hard/graph14.txt

11 27
7 10
1 8
0 10
4 2
9 4
1 4
9 2
7 1
6 10
7 3
4 0
9 1
6 1
2 7
1 0
10 2
3 5
4 7
7 9
9 0
1 10
10 8
5 7
0 3
6 5
10 5
9 8