#include <bits/stdc++.h>
using namespace std;

int main() {
  string s;
  cin >> s;
  bool ans = true;
  for (int i = 0; i < s.size(); i += 3) {
    if(s[i]=='A'){

    }
    else{
      ans = false;
    }
  }

  if(ans){
    cout << "Done!" << endl;
  }
  else{
    cout << "Failed..." << endl;
  }

  ;
  return 0;
}