#include<bits/stdc++.h>
using namespace std;
int main(){
	string s1;
	getline(cin,s1);
	for(int i=0;i<s1.size();i++){
		if(s1[i]>'a'&&s1[i]<='y'){
		    s1[i]=s1[i]+1;
		}
		else if(s1[i]>'A'&&s1[i]<='Y'){
			s1[i]=s1[i]+1;
		}
		else if(s1[i]=='z'){
			s1[i]='a';
		}
		else if(s1[i]=='Z'){
			s1[i]='A';
		}
	}
	cout<<s1;

	return 0;
}

/**************************************************************
	Problem: 1402
	User: zhuanghaoxiang
	Language: C++
	Result: Wrong Answer
****************************************************************/