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

bool IncludeKeyWords(const string& Sentence)
{
	if(Sentence.find("the")  <=80) return true;
	if(Sentence.find("this") <=80) return true;
	if(Sentence.find("that") <=80) return true;
	return false;
}

void OneShift(string& Sentence)
{
	for(int i = 0; i < Sentence.size(); i++){
		if(97 < Sentence[i] && Sentence[i] < 123){
			Sentence[i] --;
		}else if(Sentence[i] == 97){
			Sentence[i] = 123;
		}
	}
}

int main()
{
	while(true){
		string Sentence;
		getline(cin, Sentence);
		if(cin.eof() == true) break;
		while(IncludeKeyWords(Sentence) == false){
			OneShift(Sentence);
		}
		cout << Sentence << endl;
	}
	return 0;
}