#8896. 数字判断
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ID: 8896
Type: Default
10000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
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数字判断
Description
输入一个字符，如何输入的字符是数字，输出yes，否则输出no
Input Format
一个字符
Output Format
如何输入的字符是数字，输出yes，否则输出no 样例1输入
5
yes
A
no