# include<iostream> using namespace std; int main() { char c1,c2,c3,c4; cin>>c1>>c2>>c3>>c4; cout<<char((c1-97+1)%26+97)<<' '; cout<<char((c2-97+1)%26+97)<<' '; cout<<char((c3-97+1)%26+97)<<' '; cout<<char((c4-97+1)%26+97); return 0; }