#include <bits/stdc++.h>
 
using namespace std;
 
#define FOR(i, j, k) for(int i = j; i < k; ++i)
#define rep(i, j) FOR(i, 0, j)
#define repr(i, j) for(int i = j; i >= 0; --i)
#define INF (1 << 30)
#define MOD 1e9 + 7
 
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> P;
 
int main() {
    string s;
    string ans;
    bool flag = false;
    int key = 1;
    while(getline(cin, s)){ans += s;}
    if(ans.size() <= 4) {
    	while(1) {
		    rep(i, ans.size()) {
		        if(97 <= ans[i] && ans[i] <= 122) {
		            int number = (ans[i] - 'a' + key) % 26;
		            ans[i] = 'a' + number; 
		        }
		    }
		    if(ans == "the" || ans == "this" || ans == "that") {
		    	cout << ans << endl;
		    	return 0;
		    }
		}
    }
    while(1) {
        rep(i, ans.size()) {
            if(97 <= ans[i] && ans[i] <= 122) {
                int number = (ans[i] - 'a' + key) % 26;
                ans[i] = 'a' + number;
            }
        }
        string tmp;
        rep(i, ans.size()) {
            if(97 <= ans[i] && ans[i] <= 122) tmp += ans[i];
            else if(ans[i] == ' ') {
                if(tmp == "this" || tmp == "the" || tmp == "that") flag = true;
                else tmp.erase(tmp.begin(), tmp.end());
            }
        }
        if(flag) break;
    }
    cout << ans << endl;
    return 0;
}