#include <bits/stdc++.h>
using namespace std;
#define REP(i,n) for(int i=0; i<(n); i++)
#define REP2(i,x,n) for(int i=x; i<(n); i++) 
#define ALL(n) begin(n),end(n)
struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
int main()
{
    string S;
    while( getline( cin, S ) )
    {
        while( S.find( "the" ) != string::npos || S.find( "this" ) != string::npos || S.find( "that" ) != string::npos )
        {
            REP( i, (int)S.size() )
            {
                if( S[ i ] != ' ' && S[ i ] != '.' )
                {
                    if( S[ i ] == 'z' )
                    {
                        S[ i ] = 'a';
                        continue;
                    }
                    S[ i ]++;
                }
            }
        }
        cout << S << endl;
    }
    return 0;
}