#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a = 0;
  int d = 0;
  string s;
  cin >> n >> s;
  for (int i = 0; i < n; i++) {
    if (s[i] == 'A')
      a++;
    else
      d++;
  }
  cout << (a == d ? "Friendship" : (a > d ? "Anton" : "Danik"));
  return 0;
}
