import java.lang.reflect.Array;
import java.security.SecureRandom;
import java.util.*;

public class Main {

    public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int t=sc.nextInt();
    while (t-->=1){
        int n=sc.nextInt();
        long a[]= new long[n];
        for (int i=0;i<n;i++){
            a[i]=sc.nextLong();
        }
        if (a[0]+a[1]<=a[2]){
            System.out.println("1 2 3");
        }
        else{
            System.out.println("-1");
        }
    }

    }
}

