#include <iostream>
#include <cstdio>
#include <cstring>
#include <cctype>
#include <string>
#include <algorithm>
#define CHAR_NUM 80
using namespace std;

int main(void) {
    string str;
    int i, j;
    
    while(getline(cin,str)) {
        for(i = 0; ;i++) {
            for(j = 0; str[j]; j++) {
                if(isalpha(str[j])) {
                    str[j]++;
                    if(str[j] > 'z')
                        str[j] -= 26;
                }
            }
            if(str.find("this") != string::npos || str.find("that") != string::npos || str.find("the") != string::npos) {
                cout << str << endl;
                break;
            }
        }
    }
    return(0);
}