#include<algorithm>
#include<cassert>
#include<climits>
#include<cmath>
#include<cstring>
#include<deque>
#include<functional>
#include<iomanip>
#include<iostream>
#include<map>
#include<queue>
#include<set>
#include<stack>
#include<unordered_map>
#include<unordered_set>
#include<utility>
#include<vector>

using namespace std;

using lint = long long;
using P = pair<int, int>;
using LLP = pair<long long, long long>;

#define REP(i, x, n) for(int i = (x), i##_len = int(n) ; i < i##_len ; ++i)
#define rep(i, n) for(int i = 0, i##_len = int(n) ; i < i##_len ; ++i)
#define reps(i, n) for(int i = 1, i##_len = int(n) ; i <= i##_len ; ++i)
#define rrep(i, n) for(int i = int(n) - 1 ; i >= 0 ; --i)
#define rreps(i, n) for(int i = int(n) ; i > 0 ; --i)
#define SORT(x) sort((x).begin(), (x).end())
#define SORT_INV(x) sort((x).rbegin(), (x).rend())
#define TWINS(x) cout << ((x) ? "Yay!" : ":(") << endl

constexpr int IINF = (1 << 30) - 1;
constexpr long long LLINF = 1LL << 61;
constexpr double EPS = 1e-8;

const int dx4[] = {1, 0, -1, 0}, dy4[] = {0, 1, 0, -1};
const int dx8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dy8[] = {0, -1, -1, -1, 0, 1, 1, 1};

template<typename T>
bool chmax(T &a, T b){
    if(a < b){
        a = b;
        return true;
    }
    return false;
}

template<typename T>
bool chmin(T &a, T b){
    if(b < a){
        a = b;
        return true;
    }
    return false;
}

void print(double x){
    int t = 0;
    if(x < 0.0){
        t = ceil(x);
    }else{
        t = floor(x);
    }
    cout << t << endl;
    return;
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    string s;
    while(getline(cin, s)){
        vector< P > v;
        rep(i, s.size()){
            if('a' <= s[i] && s[i] <= 'z'){
                int j = i;
                while(j < i_len && 'a' <= s[j] && s[j] <= 'z'){
                    ++j;
                }
                if(3 <= j - i && j - i <= 4){
                    v.emplace_back(i, j - i);
                }
                i = j;
            }
        }

        string ans;
        for(auto p : v){
            int d = (('t' - 'a') - (s[p.first] - 'a') + 26) % 26;
            string t;
            REP(i, p.first, p.first + p.second){
                t.push_back((((s[i] - 'a') + d) % 26) + 'a');
            }
            if(t == "the" || t == "this" || t == "that"){
                rep(i, s.size()){
                    if('a' <= s[i] && s[i] <= 'z'){
                        ans.push_back((((s[i] - 'a') + d) % 26) + 'a');
                    }else{
                        ans.push_back(s[i]);
                    }
                }
                break;
            }
        }

        cout << ans << endl;
    }

    return 0;
}
