#include <bits/stdc++.h>
using namespace std;
template <class T>
int size(const T &x) {
  return x.size();
}
const int INF = ~(1 << 31);
const double pi = acos(-1);
const double EPS = 1e-9;
int main() {
  cin.sync_with_stdio(false);
  int n;
  cin >> n;
  map<int, int> cnt;
  for (int i = (0); i < (n); i++) {
    int x;
    cin >> x;
    cnt[x]++;
  }
  for (auto it = (cnt).begin(); it != (cnt).end(); ++it) {
    if (it->second > n / 2)
      cout << "Bob" << endl;
    else
      cout << "Alice" << endl;
    return 0;
  }
  return 0;
}
