#include <bits/stdc++.h>
using namespace std;
const int N = 1e3;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int n;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; ++i) cin >> a[i];
  int mn = *min_element(a, a + n);
  int mncnt = 0;
  for (int i = 0; i < n; ++i) {
    if (a[i] == mn) ++mncnt;
  }
  if (mncnt > (n / 2))
    cout << "Bob";
  else
    cout << "Alice";
}
