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