#include <iostream>
#include <string>
using namespace std;
int main() {
  string line;
  while (getline(cin, line)) {
    while (line.find("the") == string::npos && line.find("this") == string::npos
      && line.find("that") == string::npos)
      for (auto& c : line)
        if (c == 'a') c = 'z';
        else if (c != '.' && c != ' ') c -= 1;
    cout << line << endl;
  }
}