#include <bits/stdc++.h>
using namespace std;
const int MAX = 100;
int a[MAX];
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int n, mn = 100, cnt = 0;
  cin >> n;
  for (int i = 0; i < n; i++) cin >> a[i], mn = min(mn, a[i]);
  for (int i = 0; i < n; i++)
    if (a[i] == mn) cnt++;
  if (cnt <= n / 2)
    cout << "Alice" << '\n';
  else
    cout << "Bob" << '\n';
  return 0;
}
