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