16 25
2 3 5
2 4 6
3 5 7 10
3 6 9 10
2 7 10
3 8 10 11
3 9 12 13
3 10 12 16
3 11 13 14
2 12 14
2 13 16
3 14 1 1
2 15 2
2 16 3
3 1 3 3
3 2 5 8
499101
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499647
499229
499868
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499126
499545
500010
499782
500967
499621
500127
499028
499033
499056
500423
499512
499103
500776
500349
499593
500420
499658
499480