Description

输入共3行：

第1行是待处理的文本内容

第2行是查找的单词

第3行是替换的单词

通过查找替换操作后，输出处理之后的文本内容

Format

Input

I am a nurse, and she is a nurse, too!

nurse

teacher

Output

I am a teacher, and she is a teacher, too!

Samples

I am a nurse, and she is a nurse, too!
nurse
teacher

I am a teacher, and she is a teacher, too!

Limitation

1s, 1024KiB for each test case.