#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
int main()
{
	char s[80];
	char str1[] = "this";
	char str2[] = "that";
	char str3[] = "the";

	while(scanf("%s",s) != EOF){

		int len = strlen(s);

		for(int i = 0;i < 26;i++){
			for(int j = 0;j < len;j++){

				if(s[j] != '.' && s[j] != ' ' && s[j] != '\n'){	
					if(s[j] + i > 122){
						s[j] -= 26-i;
					}

					else {
						s[j] += i;
					}
				}
			}

			if(strstr(s,str1) != NULL){
				cout << s << endl;
				break;
			}

			if(strstr(s,str2) != NULL){
				cout << s << endl;
				break;
			}

			if(strstr(s,str3) != NULL){
				cout << s << endl;
				break;
			}
		}
	}
}