#include<bits/stdc++.h> using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; a=(a-97+1)%26+97; b=(b-97+1)%26+97; c=(c-97+1)%26+97; d=(d-97+1)%26+97; cout<<a<<' '<<b<<' '<<c<<' '<<d<<' '; return 0; }