#include <iostream>
#include <string>
#include <cstdio>
using namespace std;

int main(void){
    string str;
    
    while(getline(cin,str)){
  
        for(int i = 0 ; i < str.size() ; i++){
            if('a' <= str[i] && str[i] <= 'z') cout << (char)('a'+(str[i]-'a'+26-4)%26);
            else cout << str[i];
        }
        puts("");
    }
    
    return 0;
}