#include<iostream>
#include<stdio.h>
#include<string.h>
#include<ctype.h>

int main()
{
	char str[81];
	
	fgets( str, 80, stdin );
	
	while( 1 ){
		for( int i = 0; i < strlen( str ); i++ ){
			if( isalpha( str[i] ) ) str[i]++;
			
			if( str[i] > 'z' ){
			 	str[i] = 'a';
			}
		}
		
		if( strstr( str, "the" ) != NULL || strstr( str, "this" ) != NULL || strstr( str, "that" ) != NULL ) break;
	}
	
	std::cout << str << std::endl;

 	return 0;
}