#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  ;
  vector<int> a(n);
  int m = 1000;
  for (__typeof(0) i = 0; i < n; i++) {
    cin >> a[i];
    m = min(a[i], m);
  }
  int minc = 0;
  for (__typeof(0) i = 0; i < n; i++) minc += (a[i] == m);
  if (minc > n / 2)
    cout << "Bob\n";
  else
    cout << "Alice\n";
  return 0;
}
