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

int attack(string line)
{
    static const string cmp[3] = {"the", "this", "that"};
    istringstream iss(line);

    for (string word; iss >> word;) {
        char first = word[0];
        for (string c: cmp)
            if (c.size() == word.size()) {
                int i = 1;
                for (; i < c.size(); i++)
                    if ((c[i] - 't') % 26 != (word[i] - first) % 26)
                        break;
                if (i == c.size()) {
                    int div = ('t' - first) % 26;
                    return (div >= 0) ? div : 26 + div;
                }
            }
    }

    return -1;
}

inline int rotN(int x, int n)
{
    if (isalpha(x))
        return (x - 'a' + n) % 26 + 'a';
    else
        return x;
}

int main()
{
    int rot;
    string line;

    while (getline(cin, line)) {

        rot = attack(line);

        for (auto x : line)
            cout << (char) rotN(x, rot);

        cout << endl;
    }

    return 0;
}