#include<iostream>
#include<string>
using namespace std;

int main(){

	string code;

	while( getline(cin, code) ){

		for( int j=0;j<25;j++ ){
			for( int i=0;i<code.length();i++ ){
				if( code[i] >= 'a' && code[i] <= 'z' ){
					code[i] += 1;
					if(code[i]=='z'+1)code[i]='a';
				}
			}
			if(code.find("the") != -1 || code.find("this") != -1 || code.find("that") != -1)
				break;		
		}
		cout << code << endl;
	}
	return 0;

}