#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  int maxx = 51, count = 0;
  for (int i = 0; i < n; i++) {
    if (maxx > a[i]) {
      maxx = a[i];
      count = 1;
    } else if (maxx == a[i]) {
      count++;
    }
  }
  if (count <= n / 2) {
    cout << "Alice\n";
  } else {
    cout << "Bob\n";
  }
  return 0;
}
