#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int arr[n];
  for (int i = 0; i < n; i++) {
    cin >> arr[i];
  }
  int mini = 100;
  int cnt = 0;
  for (int i = 0; i < n; i++) {
    if (arr[i] == mini) {
      cnt++;
    }
    if (arr[i] < mini) {
      mini = arr[i];
      cnt = 1;
    }
  }
  if (cnt <= (n / 2)) {
    cout << "Alice";
  } else {
    cout << "Bob";
  }
  return 0;
}
