#include <iostream>
#include <string>
using namespace std;
int main(){
      string s;
      while(getline(cin,s)){
            for(int i=0;i<25;i++)while(s.find("the")==-1&&s.find("this")==-1&&s.find("that")==-1)for(int j=0;j<s.size();j++)if(s[j]>='a'&&s[j]<='z')s[j]!='z'?s[j]++:s[j]='a';
            cout<<s<<endl;
      }
}