#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int score = 0;
  string str;
  cin >> str;
  for (int j = 0; j < str.size(); ++j) {
    if (str[j] == 'A') score += 1;
    if (str[j] == 'D') {
      score -= 1;
    }
  }
  if (score > 0) cout << "Anton";
  if (score < 0) cout << "Danik";
  if (score == 0) cout << "Friendship";
  return 0;
}
