#include <bits/stdc++.h>
using namespace std;
const int N = 56;
int n, a[N];
int cnt(int x) {
  int ans = 0;
  for (int i = 1; i <= n; ++i) ans += (a[i] == x);
  return ans;
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  cout.tie(nullptr);
  cin >> n;
  for (int i = 1; i <= n; ++i) cin >> a[i];
  int k = *min_element(a + 1, a + n + 1);
  cout << (cnt(k) <= n / 2 ? "Alice" : "Bob");
}
