#include <bits/stdc++.h>
using namespace std;
int main() {
  int N, cnt = 0, mn = 100, arr[55];
  cin >> N;
  for (int i = 0; i < N; i++) {
    cin >> arr[i];
    if (arr[i] < mn) {
      mn = arr[i];
      cnt = 1;
    } else if (arr[i] == mn) {
      cnt++;
    }
  }
  if (cnt <= N / 2) {
    cout << "Alice" << endl;
  } else {
    cout << "Bob" << endl;
  }
}
