#include <bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
long long rand(long long l, long long r) {
  uniform_int_distribution<long long> uid(l, r);
  return uid(rng);
}
const int N = 55;
int a[N];
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  int n;
  cin >> n;
  int mini = 1e9, c = 0;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    if (a[i] == mini) {
      c++;
    } else if (a[i] < mini) {
      c = 1;
      mini = a[i];
    }
  }
  cout << ((c <= n / 2) ? "Alice" : "Bob");
  return 0;
}
