#include<bits/stdc++.h>
using namespace std;
int main(){
    string a;
    getline(cin,a);
    for(int i=0;i<a.size();i++){
        if(a[i]>='a'&&a[i]<'z'||a[i]>='A'&&a[i]<'Z'){
            cout<<char(a[i]+1);
        }else if(a[i]=='z'||a[i]=='Z'){
            cout<<char(a[i]-25);
        }else{
            cout<<a[i];
        }
    }
}
/**************************************************************
	Problem: 1402
	User: wengsihan
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2076 kb
****************************************************************/