4
1 1
1
1 1
3 3
1 2 4
0 2
1 3
0 5
6 7
1 3 2 4 10 48
1 6
0 5
0 4
0 5
1 3
0 12
0 1
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1000000000 1000000000 1000000000 11 15 17
0 17
1 10000
1 51
0 92
0 53
1 16
0 1