#include <bits/stdc++.h>
using namespace std;
const int MOD = 1e9 + 7;
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  int n, min = MOD, counter = 0, x;
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> x;
    if (min > x) {
      min = x;
      counter = 1;
    } else if (min == x)
      counter++;
  }
  if (counter > n / 2)
    cout << "Bob\n";
  else
    cout << "Alice\n";
  return 0;
}
