#include <bits/stdc++.h>
using namespace std;
const int maxn = 50 + 2;
int n, temp;
vector<int> arr(maxn, 0);
bool solve(int x) {}
int main() {
  while (scanf("%d", &n) == 1) {
    arr.assign(maxn, 0);
    for (int i = 0; i < n; i++) {
      cin >> temp;
      arr[temp]++;
    }
    for (int i = 0; i < 50; i++) {
      if (arr[i] != 0) {
        if (arr[i] > n / 2)
          cout << "Bob" << endl;
        else
          cout << "Alice" << endl;
        break;
      }
    }
  }
  return 0;
}
