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

int main(){
	int n;
	cin >> n;
	for(; n--; ){
		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(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;
}