#include<iostream>
#include<string>
using namespace std;
int main(){
  int ans=-1,len=0;
  string s;
  while(getline(cin,s)){
    //getline(cin,s);
    //if(s==EOF) break;
    while(1/*len<30*/){
      ans = s.find("the");
      if(ans!=-1)break;
      ans = s.find("this");
      if(ans!=-1)break;
      ans = s.find("that");
      if(ans!=-1)break;
      for(int i=0;i<s.size();i++){
	if(s[i]=='z') s[i]='a';
	else if(s[i]>='a' && s[i]<'z') s[i]++;
      }
      //len++;
    }
    cout << s << endl;
  }
}