#include <bits/stdc++.h>
using namespace std;
int a[110];
int main() {
  int n;
  scanf("%d", &n);
  int Min = 51;
  int tot = 0;
  for (int i = 1; i <= n; i++) {
    scanf("%d", &a[i]);
    Min = min(Min, a[i]);
  }
  for (int i = 1; i <= n; i++) {
    if (a[i] == Min) tot++;
  }
  if (tot <= n / 2)
    cout << "Alice" << endl;
  else
    cout << "Bob" << endl;
  return 0;
}
