488
0
19
610
0
19
722
2
19
360
0
19
716
0
19
442
0
19
308
0
19
605
0
19
1534
0
19
952
0
19
516
0
19
482
0
19
640
13
19
448
0
19
592
6
19
395
0
19
423
0
19
802
0
19
667
0
19
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Keyword(s): Math