#include<iostream>
#include<cstdio>
#include<string>

using namespace std;

int main() 
{
    string str;
    while(getline(cin,str))
    {
        for(int i=0; i<str.size(); i++)
        {
            if(str[i]=='z'||str[i]=='Z')
            {
                str[i]-=25;
            } 
            else if((str[i]>='a'&&str[i]<='y')||(str[i]>='A'&&str[i]<='Y'))
            {
                str[i]+=1;
            } 
            else 
            {
                continue;
            }
        }
        cout<<str<<endl;
    }
    return 0;
}