#include<iostream>
using namespace std;
int main()
{
    long long T;
    cin>>T;
    while(T--)
    {
        long long a,b;
        cin>>a>>b;
        if(b==1||a%2==1)
        {
            cout<<-1;
            return 0;
        }
        else
        {
            cout<<2<<" "<<a/2<<" "<<a/2;
        }
    }
}

0分求调