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

int main(){
	string input;

	while(getline(cin, input)){
	//getline(cin, input);
		while(1){
			for(int i = 0; i < input.size(); i++){
				if('a' <= input[i] && input[i] <= 'z'){
					if(input[i] != 'z'){
						input[i] += 1;
					}else{
						input[i] = 'a';
					}
				}
			}
			if(input.find("the") != string::npos || input.find("this") != string::npos || input.find("that") != string::npos){
				cout << input << endl;
				break;
			}
		}
	}

	return 0;
}