2431
21
71
2214
2
67
1560
17
67
653
7
66
1288
4
64
1646
12
63
1394
9
61
1041
10
60
794
8
57
1132
11
56
1681
5
51
1364
0
47
1721
0
43
575
20
42
807
8
42
1028
7
42
2010
0
42
1593
4
41
788
2
41
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Keyword(s): mathematics