912
4
31
850
2
31
736
1
31
1189
15
31
382
4
31
972
2
30
772
10
30
1336
17
30
500
4
30
1538
10
30
1079
0
30
313
0
30
1071
2
30
920
10
29
1088
2
29
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Keyword(s): 数学 中1