598
2
39
725
0
39
1357
6
39
879
0
39
1293
2
39
858
0
39
979
5
39
566
0
39
1966
0
39
1299
0
39
815
0
39
856
0
39
1039
1
39
1539
1
39
1263
7
39
886
0
39
1188
4
39
723
4
39
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Keyword(s): math