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

int main(){
	double xa, ya, ra, xb, yb, rb;
	int n;
	cin >> n;
	while( n-- ){
		cin >> xa >> ya >> ra >> xb >> yb >> rb;
		double diff = sqrt((xa-xb)*(xa-xb)+(ya-yb)*(ya-yb));
		if( diff + rb < ra ){
			cout << "2" << endl;
		}else if( diff + ra < rb ){
			cout << "-2" << endl;
		}else if( diff <= ra + rb ){
			cout << "1" << endl;
		}else{
			cout << "0" << endl;
		}
	}
}