#include <bits/stdc++.h>
using namespace std;
void solve() {
  int n;
  cin >> n;
  int m = 1e9, m_cnt = 0;
  int a[n];
  for (long long i = 0; i < n; ++i) {
    cin >> a[i];
    m = min(m, a[i]);
  }
  for (long long i = 0; i < n; ++i)
    if (a[i] == m) ++m_cnt;
  if (m_cnt <= n / 2)
    cout << "Alice";
  else
    cout << "Bob";
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  solve();
  return 0;
}
