#include <bits/stdc++.h>
using namespace std;
const int MAX = 2e5 + 6;
const long long MOD = 1e9 + 7;
int a[56];
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int n, cnt = 0, mn = 50;
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    mn = min(mn, a[i]);
  }
  for (int i = 0; i < n; i++)
    if (a[i] == mn) cnt++;
  if (cnt <= n / 2)
    cout << "Alice";
  else
    cout << "Bob";
}
