还好吧

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