830
2
49
1650
7
49
1634
2
49
1134
2
49
1148
0
49
11715
0
49
1428
0
49
2414
0
49
1754
1
49
2361
8
49
1175
0
49
1120
2
49
6581
0
49
4493
9
49
2126
0
49
1551
0
49
1005
0
49
1411
0
49
390
4
49
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Keyword(s): math