#include <bits/stdc++.h>
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
using ll = long long int;
using ld = long double;
using pi = pair<int, int>;
const double PI = acos(-1.0);
const double eps = 1e-9;
const ll mod = 1e9 + 7;
const int inf = 1e7;
const int MAXN = 1e5 + 5;
void cp() {
  int n;
  cin >> n;
  vector<int> arr(n);
  for (int &x : arr) cin >> x;
  int mn = *min_element(arr.begin(), arr.end());
  for (int &x : arr) x -= mn, x++;
  int one = count(arr.begin(), arr.end(), 1);
  if (one > n / 2)
    cout << "Bob\n";
  else
    cout << "Alice\n";
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  ;
  int t;
  t = 1;
  while (t--) {
    cp();
  }
  return 0;
}
