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

int main()
{
	int N;cin>>N;
	for(int i=0;i<N; i++)
	{
		double xa,ya,ra,xb,yb,rb;
		cin>>xa>>ya>>ra>>xb>>yb>>rb;
		double d=sqrt(pow(xa-xb,2)+pow(ya-yb,2));
		if ( d+rb<=ra )
			cout<<2<<endl;
		else if ( d+ra<=rb)
			cout<<-2<<endl;
		else if ( d<=ra+rb)
			cout<<1<<endl;
		else
			cout<<0<<endl;
	}
	return 0;
}