#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ char a,b,c,d; cin>>a>>b>>c>>d; a=(a-97+1)%26+'a'; b=(b-97+1)%26+'a'; c=(c-97+1)%26+'a'; d=(d-97+1)%26+'a'; cout<<a<<" "<<b<<" "<<c<<" "<<d; return 0; }