Problem1644--大小写转换

1644: 大小写转换

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 366  Solved: 253
[Status] [Submit] [Creator:]

Description

输入一个只包含大小写字母的字符串,将大写换成小写,小写换成大写

Sample Input Copy 

abCDe

Sample Output Copy 

ABcdE

Source/Category

 
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