#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  int n;
  cin >> n;
  int minStonesInAPile = 100;
  int minStonesPileCount = 0;
  int temp;
  for (int i = 0; i < n; i++) {
    cin >> temp;
    if (temp < minStonesInAPile) {
      minStonesInAPile = temp;
      minStonesPileCount = 1;
    } else if (temp == minStonesInAPile) {
      minStonesPileCount++;
    }
  }
  if (minStonesPileCount <= (n / 2)) {
    cout << "Alice\n";
  } else {
    cout << "Bob\n";
  }
}
