783
0
32
435
0
32
415
0
31
710
0
31
629
2
31
839
17
31
597
0
31
542
0
31
1347
16
31
580
6
31
466
0
31
587
1
31
2391
16
31
405
2
31
511
0
31
341
2
31
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Keyword(s): 数学