#include <bits/stdc++.h>
using namespace std;
struct triplet {
  int index, a, b;
};
bool comp(triplet &t1, triplet &t2) { return (t1.a < t2.a); }
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  int n;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; i++) cin >> a[i];
  int x = *min_element(a, a + n);
  int y = count_if(a, a + n, [x](int y) { return y == x; });
  if (y <= n / 2)
    cout << "Alice";
  else
    cout << "Bob";
}
