#YC252. 字符替换

字符替换

image # 描述

样例输入

hello-how-are-you
o
O

样例输出

hellO-hOw-are-yOu

Related

In following contests:

思维训练班字符串复习训练

In following homework:

12/20日下午

12/27日上午字符串

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