#include<bits/stdc++.h>
using namespace std;
string s; 
int main(){
	getline(cin,s);
	for(int i=0;i<=s.size();i++){
		if(s[i]<='y'&&s[i]>='a'||s[i]<='Y'&&s[i]>='A'){
			s[i]+=1;
		}else{
			if(s[i]=='Z'||s[i]=='z'){
				s[i]-=25;
			}
		}
	}
	cout<<s;
	return 0;
}