#include <bits/stdc++.h>
using namespace std;
const int INF = 0x3f3f3f3f;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  int minV = INF, cnt = 0;
  for (int i = 0; i < n; i++) {
    int v;
    cin >> v;
    if (v < minV)
      minV = v, cnt = 1;
    else if (minV == v)
      cnt++;
  }
  if (cnt <= n / 2)
    cout << "Alice\n";
  else
    cout << "Bob\n";
}
