#include <bits/stdc++.h>
using namespace std;
const int maxn = 1010;
int a[maxn];
int n;
int main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; i++) scanf("%d", a + i);
  int Min = 1e9;
  for (int i = 1; i <= n; i++) Min = min(Min, a[i]);
  int sum = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == Min) sum++;
  if (sum <= n / 2)
    printf("Alice\n");
  else
    printf("Bob\n");
}
