#include <bits/stdc++.h>
using namespace std;
mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0), cout.tie(0);
  int n;
  cin >> n;
  vector<int> a(n);
  for (int& i : a) cin >> i;
  int M = *min_element((a).begin(), (a).end());
  int c = 0;
  for (int& i : a) c += M == i;
  if (c <= n / 2)
    cout << "Alice";
  else
    cout << "Bob";
  return 0;
}
