781
0
32
434
0
32
414
0
31
709
0
31
625
2
31
822
17
31
594
0
31
542
0
31
1331
16
31
571
6
31
466
0
31
584
1
31
2389
16
31
404
2
31
509
0
31
340
2
31
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Keyword(s): 数学、