#include<cstdio>
#include<iostream>
#include<algorithm>
#include<string>
using namespace std;
int main(){
  string str;
  int str_size;
  while(getline( cin , str )){
    str_size = str.size();
    while(1){
      for(int i=0;i<str_size;i++){
	if(str[i] == 'z')str[i]='a';
	else if(str[i] != '.' && str[i] != ' ')str[i]++;
      }
      if(str.find( "the" ) != -1)break;
      if(str.find( "that" ) != -1)break;
      if(str.find( "this" ) != -1)break;
    }
    cout << str << endl;
  }
}