#include <iostream>
#include <string>
using namespace std;
int main(int argc, const char * argv[])
{
    string word;
    //string test = "this";
    //string test2 = "the";
    //string test3 = "that";
    int i;
    while (getline(cin, word)) {
        while (1) {
            for (i = 0; i < word.size(); i++) {
                if (isalpha(word[i])) {
                    word[i]++;
                    if (word[i] == '{') {
                        word[i] = 'a';
                    }
                }
            }
            if (word.find("this") != -1 || word.find("that") != -1 || word.find("the") != -1) {
                break;
            }
        }
        cout << word << endl;
    }
    return 0;
}