#include <bits/stdc++.h>
using namespace std;
int a[51];
int main() {
  ios_base::sync_with_stdio(false);
  int n;
  cin >> n;
  int minPile = 1000;
  for (int i = 0; i < n; ++i) {
    cin >> a[i];
    minPile = min(minPile, a[i]);
  }
  int minCnt = 0;
  for (int i = 0; i < n; ++i) {
    if (a[i] == minPile) {
      minCnt++;
    }
  }
  if (minCnt > n / 2) {
    cout << "Bob";
  } else {
    cout << "Alice";
  }
}
