#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<int> d(n);
  for (int i = 0; i < n; i++) cin >> d[i];
  int mn = INT_MAX;
  for (int i : d) mn = min(mn, i);
  int cnt = 0;
  for (int i : d)
    if (i == mn) cnt++;
  if (cnt * 2 > n)
    cout << "Bob" << endl;
  else
    cout << "Alice" << endl;
  return 0;
}
