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

using namespace std;

int main(void){
	int i, j;
	string s, suc1("the"), suc2("this"), suc3("that");
	while(getline(cin,s)){
		while(s.find(suc1) == -1 && s.find(suc2) == -1 && s.find(suc3) == -1){	
			for(j = 0;j < s.size();j++){
				if(s[j] == 'z')
					s[j] = 'a';
				else if(isalpha(s[j]))
					s[j]++;
			}
		}
		cout << s << endl;
	}
	return 0;
}