#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, tmp, mn = INT_MAX, cnt = 0;
  cin >> n;
  int nn = n;
  while (n--) {
    cin >> tmp;
    if (tmp < mn)
      cnt = 1, mn = tmp;
    else if (tmp == mn)
      ++cnt;
  }
  if (cnt <= nn / 2)
    puts("Alice");
  else
    puts("Bob");
  return 0;
}
