#include <bits/stdc++.h>
using namespace std;
int a[55];
int cnt[55];
int main() {
  int n;
  scanf("%d", &n);
  int mi = 2e9;
  for (int i = 0; i < n; i++) {
    scanf("%d", &a[i]);
    mi = min(mi, a[i]);
    cnt[a[i]]++;
  }
  if (cnt[mi] <= n / 2)
    printf("Alice\n");
  else
    printf("Bob\n");
  return 0;
}
