1564
0
45
1242
0
45
2693
0
45
765
0
45
1150
5
45
2718
14
45
1603
12
45
1020
9
45
3430
2
45
1679
6
45
1567
2
45
1008
0
45
751
6
44
1221
5
44
1442
1
44
1292
13
44
2086
0
44
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Keyword(s): math