#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl;
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    string text;
    while (getline(cin, text))
    {
        while (text.find("the") == string::npos && text.find("this") == string::npos && text.find("that") == string::npos)
        {
            rep(i, text.size())
            {
                if (text[i] != ' ' && text[i] != '.')
                {
                    if (text[i] != 'z')
                        text[i]++;
                    else
                    {
                        text[i] = 'a';
                    }
                }
            }
        }
        OP(text)
    }
    return 0;
}
