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Problem1229--1.12:02-四舍五入

1229: 1.12:02-四舍五入

Time Limit: 1 Sec  Memory Limit: 128 MB  Submit: 8  Solved: 2
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Description

将一个整数，四舍五入

12345->12350

12399->12400

Input

一个整数n

Output

一个整数m

Sample Input Copy 

99

Sample Output Copy 

100

HINT

0<=n<=10^9

Source/Category

算法 基础 
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