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