498
0
26
1085
2
26
354
4
25
483
4
24
601
2
24
718
0
24
566
11
23
965
0
23
831
5
23
462
0
22
410
7
22
444
3
22
471
3
22
496
4
21
1582
13
21
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Keyword(s): Mathematics