#include <bits/stdc++.h>
#pragma GCC optimize(3)
using namespace std;
const long long maxnodes = 1005;
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  ;
  long long n;
  cin >> n;
  long long cnt = 0;
  vector<long long> v(n);
  long long mn;
  for (long long i = 0; i < n; i++) {
    cin >> v[i];
    if (i == 0)
      mn = v[i];
    else
      mn = min(mn, v[i]);
  }
  for (long long i = 0; i < n; i++) {
    if (v[i] == mn) cnt++;
  }
  if (cnt > n / 2)
    cout << "Bob";
  else
    cout << "Alice";
}
