#include<iostream> #include<cstdio> using namespace std; int main(){ char a,b,c,d,a1,b1,c1,d1; cin>>a>>b>>c>>d; a1=(a-97+1)%26+97; b1=(b-97+1)%26+97; c1=(c-97+1)%26+97; d1=(d-97+1)%26+97; printf("%c %c %c %c",a1,b1,c1,d1); return 0; }