#include<bits/stdc++.h> using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; cout<<char((a+1-'a')%26+'a')<<" "<<char((b+1-'a')%26+'a')<<" "<<char((c+1-'a')%26+'a')<<" "<<char((d+1-'a')%26+'a'); return 0; }