303
6
16
295
2
15
515
4
15
287
3
15
394
5
15
273
2
15
326
5
14
302
2
13
290
1
13
363
2
12
516
5
12
258
2
12
719
13
11
265
2
11
308
1
11
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Keyword(s): 数学 正の数 負の数