#include<iostream> using namespace std; int main(){ char a1,a2,a3,a4; cin>>a1>>a2>>a3>>a4; a1=(a1-97+1)%26+97; a2=(a2-97+1)%26+97; a3=(a3-97+1)%26+97; a4=(a4-97+1)%26+97; cout<<a1<<" "<<a2<<" "<<a3<<" "<<a4; return 0; }