958
0
20
1449
0
20
408
0
19
997
0
19
926
0
19
745
0
19
1094
0
19
438
0
19
420
0
19
666
0
19
1039
0
19
859
2
19
2693
0
19
1556
1
19
929
0
19
678
0
19
651
0
19
690
0
19
495
4
19
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Keyword(s): math