1658
12
63
1352
9
63
831
1
63
12986
0
63
1558
15
63
1627
3
63
851
0
63
1523
12
63
1318
4
63
2441
0
63
1733
0
63
1800
0
63
2037
3
63
550
2
63
833
0
63
1228
7
63
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Keyword(s): math