#include<iostream>
#include<string>
#include<vector>
using namespace std;

int main(void){
  int len, cnt;
  string str(" "), buf;

  getline( cin, buf );
  if( buf[buf.size()-1] == '\n' )
    buf.erase(buf.size()-1);
  if( buf[buf.size()-1] == '\r' )
    buf.erase(buf.size()-1);
  
  str.append(buf);
  str.append(" ");
  len = str.length();
  cnt = 0;

  while(true){
    if( str.find("the", 0) != string::npos
	|| str.find("this", 0) != string::npos 
	|| str.find("that", 0) != string::npos
	)
      break;
    for(int i = 0; i < len; i++){
      if( 'a' <= str[i] && str[i] <= 'z' ){
	str[i]++;
	if(str[i] > 'z')
	  str[i] = 'a';
      }
    }

    cnt++;
    if(cnt > 30)
      break;
  }
  
  str.erase(0,1);
  str.erase(str.size() - 1);
  cout << str << endl;

  return 0;
}