#include <iostream>
#include <map>
using namespace std;

int main()
{
    int t;
    cin >> t;
    while(t--){
        int n;
        cin >> n;
        map<int, int> mp;
        for(int i = 0; i < n; i++){
            int a;
            cin >> a;
            mp[a]++;
        }
        int c = 0;
        for(auto itr = mp.begin(); itr != mp.end(); itr++) c += itr->second % 2;
        if(c) cout << "Alice" << endl;
        else cout << "Bob" << endl;
    }
}