#include<iostream>
#include<string>
#include<string.h>
using namespace std;
int main()
{
	string s;
	getline(cin, s);
	while (true){
		for (int i = 0; i < s.size(); i++){
			if (s[i] == 'z'){
				s[i] = 'a';
			}
			else if (s[i]>='a'&&s[i] < 'z'){
				s[i]++;
			}
		}
		if (s.find("the") != -1)break;
		if (s.find("this") != -1)break;
		if (s.find("that") != -1)break;
	}
	cout << s << endl;
}