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

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