2186
21
91
1963
21
90
2187
18
90
1559
4
90
2568
1
89
1927
14
89
2742
2
89
1478
16
89
4177
2
88
4517
0
88
1880
33
88
2295
0
88
2512
28
88
2684
1
87
3068
0
87
1214
0
87
1954
1
86
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Keyword(s): math