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Background

Description

单词替换。 输入一个字符串，以回车结束（字符串长度<=100）。该字符串由若干个单词组成，单词之间用空格隔开，所有单词区分大小写。现需要将其中的某个单词替换成另一个单词，并输出替换之后的字符串。

Format

Input

Output

Samples

I love apples and often eat apples
apples
bananas

I love bananas and often eat bananas

Limitation

1s, 1024KiB for each test case.