#include <bits/stdc++.h>
using namespace std;
const long long inf = 1e9 + 7;
long long n, m;
signed main() {
  cin >> n;
  long long mn = inf;
  vector<long long> val(n);
  for (long long i = 0; i < n; i++) {
    cin >> val[i];
    mn = min(mn, val[i]);
  }
  sort(val.begin(), val.end());
  long long cnt = 0;
  for (long long i = 0; i < n; i++)
    if (val[i] == mn) cnt++;
  if (cnt <= n / 2)
    cout << "Alice" << endl;
  else
    cout << "Bob" << endl;
}
