「CFgym100514R」6227020800

2014年11月2日2,6230

You are given an encrypted string, encrypted using a certain algorithm.Decrypt it !

Input

The first and single line of input contains a string s, which each of it’s characters is a lower case English letter. (1 ≤ |s| ≤ 10⁵)

Output

Print the original string.

Sample test(s)

input

punemru

punemru

output

charzeh

charzeh

input

lbhfrsv

lbhfrsv

output

yousefi

yousefi

input

zzg

zzg

output

mmt

mmt

题解

恺撒密码。。。

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstdlib>
#include<cstring>
using namespace std;
string s;
int main()
{
    cin>>s;
    int t=s.length();
    for(int i=0;i<t;i++)
		printf("%c",(s[i]-'a'+13)%26+'a');
    return 0;
}