#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+1-97)%26+97; b=(b+1-97)%26+97; c=(c+1-97)%26+97; d=(d+1-97)%26+97; cout<<(char)(a)<<(char)(b)<<(char)(c)<<(char)(d); return 0; }