3469: 单词排序
Memory Limit：256 MB
Time Limit：1.000 S
Judge Style：Text Compare
Creator：
Submit：0
Solved：0
Description
[md]
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）
[/md]
Sample Input Copy
She wants to go to Peking University to study Chinese
Sample Output Copy
Chinese
Peking
She
University
go
study
to
wants