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