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

int main(void){
	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( (xa-xb)*(xa-xb) + (ya-yb)*(ya-yb) );

		if( ra+rb < d )
			cout << 0 << endl;
		else if( d+rb < ra )
			cout << 2 << endl;
		else if( d+ra < rb )
			cout << -2 << endl;
		else
			cout << 1 << endl;

	}
	return 0;
}