2 3
1 1
1 4
1 3
1 4
1 5
0 2
1 2
2 5
0 3
0 6
0 2
2 2
5 4
0 5
2 2
0 4
1 2
0 5
1 7
0 2
2 5
0 4
0 8
3 5
1 7
3 6
3 6
3 8
2 6
1 9
0 4
1 4
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