#include <bits/stdc++.h>
using namespace std;
int main(){
  int T;
  cin >> T;
  for (int i = 0; i < T; i++){
    int N;
    cin >> N;
    vector<int> A(N);
    for (int j = 0; j < N; j++){
      cin >> A[j];
    }
    map<int, int> mp;
    for (int j = 0; j < N; j++){
      mp[A[j]]++;
    }
    bool ok = false;
    for (auto P : mp){
      if (P.second % 2 == 1){
        ok = true;
      }
    }
    if (ok){
      cout << "Alice" << endl;
    } else {
      cout << "Bob" << endl;
    }
  }
}