#include<bits/stdc++.h> using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; if(a=='z') cout<<char(a-25)<<" "; else cout<<char(a+1)<<" "; if(b=='z') cout<<char(b-25)<<" "; else cout<<char(b+1)<<" "; if(c=='z') cout<<char(c-25)<<" "; else cout<<char(c+1)<<" "; if(d=='z') cout<<char(d-25)<<" "; else cout<<char(d+1)<<" "; return 0; }