#include <bits/stdc++.h>
using namespace std;
const int N = 55;
int n;
int a[N];
int main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
  int m = *min_element(a + 1, a + n + 1);
  int cnt = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == m) cnt++;
  if (cnt > n / 2)
    printf("Bob");
  else
    printf("Alice");
  return 0;
}
