#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0), cout.tie(0);
  int n;
  cin >> n;
  vector<int> a(n);
  for (int &x : a) cin >> x;
  const int m = *min_element(a.begin(), a.end());
  const int c = count(a.begin(), a.end(), m);
  cout << (c > n / 2 ? "Bob" : "Alice");
  return 0;
}
