453
0
15
844
1
14
1144
1
14
575
6
13
367
0
13
481
4
13
299
2
13
499
5
13
735
7
13
433
0
12
711
1
12
437
2
12
560
0
12
795
7
12
438
3
11
287
0
11
471
1
11
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Keyword(s): math