1597
3
54
1140
0
54
1216
0
54
1624
2
54
1558
7
53
1135
0
53
1688
5
52
1124
3
52
1535
0
52
1049
0
52
838
0
52
1053
1
52
117166
0
52
1260
20
52
1600
3
51
360
0
51
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Keyword(s): 数学 問題