638
5
15
413
0
14
1013
4
14
488
0
13
579
2
13
777
0
13
786
0
12
1785
0
11
648
0
10
4064
11
10
497
0
10
597
0
10
301
4
10
469
1
9
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Keyword(s): 数学 用語