#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 10;
int n, a[N], num;
int main() {
  scanf("%d", &n);
  for (int i = 1; i <= n; ++i) {
    scanf("%d", a + i);
  }
  int minn = *min_element(a + 1, a + n + 1);
  for (int i = 1; i <= n; ++i) {
    if (a[i] == minn) num++;
  }
  if (num <= n / 2)
    puts("Alice");
  else
    puts("Bob");
  return 0;
}
