2016/finals/grundy_graph_sample_input.txt

5
2 3
1 2
1 3
1 4
2 2
1 3
2 3
5 4
3 6
4 5
8 9
9 10
500000 0
10 10
10 2
6 3
6 19
7 10
14 2
1 11
6 11
1 14
6 14
4 14