#include <bits/stdc++.h>
using namespace std;
const int maxn = 5e5 + 5;
const long long inf = 0x3f3f3f3f3f;
long long n;
long long a[maxn];
int main() {
  cin >> n;
  for (int i = 1; i <= n; i++) cin >> a[i];
  long long imin = inf;
  for (int i = 1; i <= n; i++) imin = min(imin, a[i]);
  int cnt = 0;
  for (int i = 1; i <= n; i++) cnt += (a[i] == imin);
  if (cnt <= n / 2)
    cout << "Alice";
  else
    cout << "Bob\n";
  return 0;
}
