#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<iomanip> using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; a=((a+1)-96)%26+96; b=((b+1)-96)%26+96; c=((c+1)-96)%26+96; d=((d+1)-96)%26+96; cout<<a<<" "<<b<<" "<<c<<" "<<d; return 0; }