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