#include <iostream> using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; a = (a+1-'a')%26+'a'; b = (b+1-'a')%26+'a'; c = (c+1-'a')%26+'a'; d = (d+1-'a')%26+'a'; cout<<a<<' '<<b<<' '<<c<<' '<<d; }