#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");
	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;
}