#include <bits/stdc++.h>
using namespace std;
int n;
int a[100003];
int main() {
  cin >> n;
  int mx = 19260817, cnt = 0;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    if (a[i] < mx)
      mx = a[i], cnt = 1;
    else if (a[i] == mx)
      cnt++;
  }
  if (cnt <= n / 2)
    puts("Alice");
  else
    puts("Bob");
  return 0;
}
