data/connectivity/graph_structure/hard/graph1022.txt

26 26
2 4
0 2
18 6
13 0
14 0
15 19
5 19
14 22
10 25
16 25
24 7
3 17
0 7
8 1
4 20
2 5
12 21
16 19
6 8
17 20
19 9
0 1
23 16
11 9
1 12
20 12