Problem3369--【语言基础】abc398a-doors in the center

3369: 【语言基础】abc398a-doors in the center

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 13Submit Num: 23Statistics

Description

Sample Input Copy 

4

Sample Output Copy 

-==-

Source/Category

语言基础 思维  构造 
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