#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: wangchenyu
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2076 kb
****************************************************************/