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

int main()
{
    string s;
    while(getline(cin, s))
    {
        while(s.find("this")==s.npos && s.find("that") == s.npos && s.find("the") == s.npos)
        {
            for(int i = 0; i <(int) s.size(); i++)
            {
                if(s[i] > 'z' || s[i] < 'a')
                    continue;
                if(s[i] != 'z')
                    s[i]++;
                else
                    s[i] = 'a';
            }
        }
        cout<<s<<endl;
    }
}

