#include<iostream> #include<cstdio> using namespace std; int main() { char a,b,c,d; cin>>a>>b>>c>>d; char ch1,ch2,ch3,ch4; ch1=(a-'a'+1)%26+'a'; ch2=(b-'a'+1)%26+'a'; ch3=(c-'a'+1)%26+'a'; ch4=(d-'a'+1)%26+'a'; cout<<ch1<<" "<<ch2<<" "<<ch3<<" "<<ch4; return 0; }