#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  scanf("%d", &n);
  int Min = 1e9, cnt = 0;
  for (int i = 1, x; i <= n; i++) {
    scanf("%d", &x);
    if (x < Min)
      Min = x, cnt = 1;
    else
      cnt += (x == Min);
  }
  if (cnt <= n / 2)
    puts("Alice");
  else
    puts("Bob");
}
