598
0
49
801
2
49
877
0
49
550
0
49
872
8
49
542
4
49
924
6
49
504
4
48
478
5
48
848
8
48
761
0
48
829
8
48
950
19
48
949
8
48
1494
6
47
815
2
47
2550
14
47
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Keyword(s): 数学