#include <bits/stdc++.h>
using namespace std;
const long long MOD = 1000000007;
int main() {
  int n;
  cin >> n;
  int min_seen = INT_MAX;
  int count_min = 0;
  for (int i = 0; i < n; i++) {
    int a;
    cin >> a;
    if (a < min_seen) {
      min_seen = a;
      count_min = 1;
    } else if (a == min_seen) {
      count_min++;
    }
  }
  cout << (count_min > n / 2 ? "Bob" : "Alice");
  return 0;
}
