#include <bits/stdc++.h>
using namespace std;
int a[100];
int main() {
  int n;
  cin >> n;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
  }
  sort(a, a + n);
  int tmp = a[0];
  int cnt = 0;
  for (int i = 0; i < n; ++i) {
    if (a[i] == tmp)
      ++cnt;
    else
      break;
  }
  if (cnt > n / 2) {
    cout << "Bob" << endl;
  } else
    cout << "Alice" << endl;
  return 0;
}
