#include <bits/stdc++.h>
using namespace std;
const int maxn = 55;
int main() {
  int num = 0, min_ = 100;
  int n, a[55];
  scanf("%d", &n);
  for (int i = 0; i < n; i++) {
    scanf("%d", &a[i]);
    min_ = min(min_, a[i]);
  }
  for (int i = 0; i < n; i++)
    if (a[i] == min_) num++;
  if (num <= n / 2)
    printf("Alice\n");
  else
    printf("Bob\n");
  return 0;
}
