自己看

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
string s;
int main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	std::ios::sync_with_stdio(false);
	std::cin.tie(nullptr);
	std::cout.tie(nullptr);
	getline(cin,s);
    ll len=s.size();
    for(ll i=0;i<len;i++){
        if(s[i]>='a'&&s[i]<='y'||s[i]>='A'&&s[i]<='Y'){
            s[i]+=1;
        }else{
            if(s[i]=='z'){
                s[i]='a';
            }else{
                if(s[i]=='Z'){
                    s[i]='A';
                }
            }
        }
    }
    cout<<s<<endl;
	//fclose(stdin);
	//fclose(stdout);
	return 0;
}
//coder::by::M91