#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int MOD = 1e9 + 7;
const int INF = 1e9 + 1e2;
void fin() {}
const bool flag = 0;
const int N = 55;
void ma1n() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (int& first : a) {
    cin >> first;
  }
  sort((a).begin(), (a).end());
  if (a[n / 2] > a[0]) {
    cout << "Alice";
  } else {
    cout << "Bob";
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(nullptr), fin();
  int ts = 1;
  if (flag) {
    cin >> ts;
  }
  while (ts--) {
    ma1n();
  }
  return 0;
}
