264
6
16
242
2
15
491
4
15
246
3
15
352
5
15
234
2
15
285
5
14
284
2
13
252
1
13
350
2
12
483
5
12
226
2
12
623
13
11
232
2
11
285
1
11
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Keyword(s): 数学 正の数 負の数