#include <bits/stdc++.h>
using namespace std;
const long long N = 1e5 + 7;
long long n, a[N], cnt[N];
int32_t main() {
  cin >> n;
  for (long long i = 0; i < n; i++) cin >> a[i], cnt[a[i]]++;
  for (long long i = 1; i < N; i++)
    if (cnt[i] > 0) {
      if (cnt[i] > n / 2)
        cout << "Bob";
      else
        cout << "Alice";
      return 0;
    }
  return 0;
}
