Codeforces898A-Rounding

A. Rounding

time limit per test

memory limit per test

input

output

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.

n = 4722 answer is 4720. If n = 5 Vasya can round it to 0 or to 10. Both ways are correct.

n

Input

n (0 ≤ n ≤ 109) — number that Vasya has.

Output

n. Pay attention that in some cases answer isn't unique. In that case print any correct answer.

Examples

input

5

output

0

input

113

output

110

input

1000000000

output

1000000000

input

5432359

output

5432360

Note

n = 5. Nearest integers, that ends up with zero are 0 and 10. Any of these answers is correct, so you can print 0 or10.

题解:四舍五入，直接求解。

Code：

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n;
  scanf("%d",&n);
  int k=n%10;
  if(k<=5)printf("%d",n-k);
    else printf("%d",n+10-k);
  return 0;
}