#include <algorithm>
#include <iostream>
#include <cstdio>
#include <map>
#include <numeric>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#include <queue>
#include <string.h>
using namespace std;

#define ISEQ(c) (c).begin(), (c).end()
typedef long long ll;

int main() {
  char s[90];
  while (fgets(s, 81, stdin) != 0) {
    for (int i = 0; i < 26; i++) {
      for (int j = 0; j < strlen(s); j++) {
	if (isalpha(s[j])) {
	  if (s[j] == 'z') s[j] = 'a';
	  else s[j]++;
	}
      }
      if (strstr(s, "the") != NULL or strstr(s, "this") != NULL or strstr(s, "that") != NULL) break;
    }
    printf("%s\n", s);
  }
}