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Problem1195--1.10-09:单词排序

1195: 1.10-09:单词排序

Time Limit: 1 Sec  Memory Limit: 128 MB  Submit: 0  Solved: 0
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Description

输入一行单词序列,相邻单词之间由1个或多个空格间隔,请按照字典序输出这些单词,要求重复的单词只输出一次。(区分大小写)

Input

一行单词序列,最少1个单词,最多100个单词,每个单词长度不超过50,单词之间用至少1个空格间隔。数据不含除字母、空格外的其他字符。

Output

按字典序输出这些单词,重复的单词只输出一次。

Sample Input Copy

She  wants  to go to Peking University to study  Chinese

Sample Output Copy

Chinese
Peking
She
University
go
study
to
wants

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