#include <bits/stdc++.h>
using namespace std;
int n, a, sum = 0x7fffffff, tot;
int main() {
  cin >> n;
  for (int i = 1; i <= n; i++) {
    cin >> a;
    if (sum > a)
      sum = a, tot = 1;
    else if (a == sum)
      tot++;
  }
  if (tot <= n / 2)
    puts("Alice");
  else
    puts("Bob");
  return 0;
}
