3103
1
62
1626
9
61
1286
12
61
1494
3
61
1422
17
61
1098
0
61
7713
0
61
1399
11
61
1936
5
61
1867
6
61
1306
0
61
1107
0
61
2321
0
61
2461
29
61
1053
8
61
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Keyword(s): 数学