743
4
18
1051
0
18
602
0
18
814
0
18
577
0
18
653
0
18
860
6
18
677
0
18
767
2
18
991
0
18
367
2
18
687
0
18
1709
21
18
249
0
18
897
0
18
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Keyword(s): Math