#include <bits/stdc++.h>   using namespace std;   int main() {     int N;     cin >> N;     int arr[N + 1];     for (int i = 0; i < N; i++) {       cin >> arr[i];     }     sort(arr, arr + N);     if (arr[0] != arr[N / 2])       cout <<  Alice  << endl;     else       cout <<  Bob  << endl;     return 0;   }   