991
0
30
498
0
30
1109
2
30
4079
17
30
683
2
30
1011
2
30
699
5
30
804
0
30
865
0
30
915
13
30
1494
0
30
976
0
30
683
3
30
957
2
29
619
0
29
2497
0
29
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Keyword(s): Math