Rounding
题意翻译
给你一个数字,将其“四舍六入”,末尾为5舍去或进位都可,求最终的数字。
题目描述
Vasya has a non-negative integer $ n $ . He wants to round it to nearest integer, which ends up with $ 0 $ . If $ n $ already ends up with $ 0 $ , Vasya considers it already rounded.
For example, if $ n=4722 $ answer is $ 4720 $ . If $ n=5 $ Vasya can round it to $ 0 $ or to $ 10 $ . Both ways are correct.
For given $ n $ find out to which integer will Vasya round it.
输入输出格式
输入格式
The first line contains single integer $ n $ ( $ 0<=n<=10^{9} $ ) — number that Vasya has.
输出格式
Print result of rounding $ n $ . Pay attention that in some cases answer isn't unique. In that case print any correct answer.
输入输出样例
输入样例 #1
5
输出样例 #1
0
输入样例 #2
113
输出样例 #2
110
输入样例 #3
1000000000
输出样例 #3
1000000000
输入样例 #4
5432359
输出样例 #4
5432360
说明
In the first example $ n=5 $ . Nearest integers, that ends up with zero are $ 0 $ and $ 10 $ . Any of these answers is correct, so you can print $ 0 $ or $ 10 $ .