2516
21
71
2265
2
67
1616
17
67
667
7
66
1300
4
64
1665
12
64
1413
9
61
1062
10
60
815
8
57
1178
11
56
1732
5
51
1380
0
47
1734
0
43
598
20
42
820
8
42
1053
7
42
2053
0
42
1613
4
41
798
2
41
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Keyword(s): mathematics