#include <iostream>
#include <string>
using namespace std;
int main(){
	string s;
	while(getline(cin,s)){
		for(int i=1;i<26;++i){
			for(int j=0;j<s.size();++j) if('a'<=s[j]&&s[j]<='z') s[j]=((s[j]-'a'+1)%26+'a');
			if(s.find("the")!=-1||s.find("this")!=-1||s.find("that")!=-1)break;
		}
		cout<<s<<endl;
	}
	return 0;
}