#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> k;
  int min = 50;
  for (int i = 0; i < n; ++i) {
    int a;
    cin >> a;
    if (a < min) {
      min = a;
    }
    k.push_back(a);
  }
  int suma = 0;
  for (auto &i : k) {
    if (i == min) {
      suma++;
    }
  }
  if (suma <= (n / 2))
    cout << "Alice";
  else
    cout << "Bob";
  return 0;
}
