#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> as;
  for (int i = 0; i < n; i++) {
    int tmp;
    cin >> tmp;
    as.push_back(tmp);
  }
  sort(as.begin(), as.end());
  int mina = as[0];
  int count = 0;
  for (const auto& a : as) {
    if (a == mina) count++;
  }
  if (count > n / 2)
    cout << "Bob" << endl;
  else
    cout << "Alice" << endl;
}
