1559
4
24
885
0
23
432
0
22
1075
0
22
546
0
21
792
0
21
814
0
21
423
0
20
644
0
19
691
0
19
612
1
18
531
0
17
625
0
17
545
0
17
250
0
17
580
0
16
469
2
16
531
0
16
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Keyword(s): 有理数