449
0
26
322
4
25
461
4
24
537
2
24
633
0
24
513
11
23
925
0
23
790
5
23
443
0
22
365
7
22
405
3
22
429
3
22
442
4
21
1532
13
21
793
2
21
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Keyword(s): maths