C

#include<bits/stdc++.h>
using namespace std;

int main(){
    int tst;
    cin>>tst;
    while(tst--){
      int n;
        cin>>n;
        int a[n];
        for(int i=0;i<n;i++)
          cin>>a[i];

        sort(a,a+n);

        int sub=0;
        int winner=0;

        for(int i=0;i<n;i++)
        {
          a[i] -= sub;

          if(a[i] == 1)
          {
              winner ^= 1;
              sub += a[i];
          }
          else if(a[i] > 1)
          {
              winner ^= 1;
              break;
          }
        }

        if(winner)
            cout<<"Alice\n";
        else
            cout<<"Bob\n";
    }
}