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OI-codes/BZOJ/2794/data/5.in

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8
4 1 9
4 2 5
3 1 7
3 2 6
5 1 6
2 2 7
2 1 5
5 2 5
10
2 3 0
7 3 0
6 22 0
2 8 0
3 16 0
6 5 0
6 19 0
7 6 0
7 21 0
4 20 0