#include<bits/stdc++.h>
using namespace std;
signed main(void){
	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.length();i++){
				if(s[i]>'z'||s[i]<'a')continue;
				if(s[i]!='z')s[i]++;
				else s[i]='a';
			}
		cout<<s<<endl;
	}
}
#include <bits/stdc++.h>
using namespace std;
#define FOR(i, s, n) for(int i = s; i < (int)n; i++)
#define per(i, n) for(int i = n; i >= 0; i--)
#define ROF(i, s, n) for(int i = s; i >= (int)n; i--)
#define FORIT(i, A) for (auto i : A)
#define PRINT(x) cout << (x) << "\n"
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define MP make_pair
#define EACH(i, n) for (__typeof((n).begin()) i = (n).begin(); i != (n).end(); ++i)
#define SZ(a) int((a).size())
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define CLR(a) memset((a), 0 ,sizeof(a))
#define NCLR(a) memset((a), -1 ,sizeof(a))
#define dump(x) cout << #x << " = " << (x) << "\n";
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << "\n";
#define sq(n) (n) * (n)
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef priority_queue<int> maxpq;
typedef priority_queue< int, vector<int>, greater<int> > minpq;
typedef complex<double> P;
static const double EPS = 1e-10;
static const double PI = acos( -1.0 );
static const int mod = 1000000007;
static const int INF = 1 << 30;
static const LL LL_INF = 1152921504606846976;
static const int dx[] = { -1, 0, 1, 0, 1, -1, 1, -1 };
static const int dy[] = { 0, -1, 0, 1, 1, 1, -1, -1 };

string str;
map<char, char> change;

int main() {
	for ( int i = 0; i < 26; i++ ) {
		change[ i + 'a' ] = ( i + 25 ) % 26 + 'a';
	}
	while ( getline( cin, str ) ) {
		for ( ;; ) {
			for ( int j = 0; j < str.size(); j++ ) {
				if ( str[ j ] >= 'a' && str[ j ] <= 'z' ) {
					str[ j ] = change[ str[ j ] ];
				}
			}
			bool is_can = false;
			for ( int j = 2; j < str.size(); j++ ) {
				if ( str.substr( j - 2, 3 ) == "the" ) {
					is_can = true;
					break;
				}
			}
			for ( int j = 3; j < str.size(); j++ ) {
				if ( str.substr( j - 3, 4 ) == "that" || str.substr( j - 3, 4 ) == "this" ) {
					is_can = true;
					break;
				}
			}
			if ( is_can ) {
				break;
			}

		}
		printf( "%s\n", str.c_str() );
	}
	return 0;
}