1290
0
21
505
2
21
455
0
21
575
0
21
849
0
21
683
8
21
435
2
21
834
0
21
311
2
21
909
4
21
440
0
21
594
4
21
934
0
21
1117
0
21
633
0
21
1226
2
21
816
0
21
792
0
21
1290
2
21
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Keyword(s): Math