935
0
51
236
0
51
481
0
51
4260
0
51
1399
5
51
3822
24
51
1351
8
51
1315
0
51
1556
2
51
361
0
51
320
0
51
697
14
51
1729
23
51
329
3
51
1432
19
51
2542
0
51
1725
19
51
1550
0
51
1516
6
51
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Keyword(s): 数学、