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