【例9.3】小写字母转大写字母
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说明
输入一个小写字母，则变为大写输出。
输入格式
输入为一个小写字符。
输出格式
对应的大写字母。
样例
aA
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
输入一个小写字母，则变为大写输出。
输入为一个小写字符。
对应的大写字母。
aA