630
0
31
1573
0
31
1167
2
31
924
0
31
1624
5
31
898
3
31
1209
0
31
670
6
30
1314
8
30
1604
1
30
972
2
30
2342
4
30
1092
1
30
498
4
30
747
0
30
653
0
30
648
3
30
986
2
30
951
2
30
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Keyword(s): 数学 中2