#include <iostream>
#include <string>
#include <math.h>
#include <stdio.h>

using namespace std;

int main() {
    string a;
    
    getline(cin,a);
    
    while (1){
        if(a.find("this")!=-1 || a.find("the")!=-1 || a.find("that")!=-1){
            break;
        }
        
        for(int i=0; i<(int)a.length(); i++){
            if(a[i]==' '|| a[i]=='.'){
                
            }else if(a[i]=='z'){
                a[i]='a';
            }else{
                a[i]++;
            }
        }

    }
    cout<<a<<endl;;
    
    
    return 0;
}