#include <iostream>
#include <array>
#include <math>

int main(){

	std::array<double, 3> a; //0:xa 1:ya 2:ra
	std::array<double, 3> b;

	int N;
	std::cin >> N;

	for(int i = 0; i < N; ++i){
		
		for(int j = 0; j < 3; ++j)
			std::cin >> a[j];

		for(int j = 0; j < 3; ++j)
			std::cin >> b[j];

		double ab = hypot( (a[0] - b[0]) , (a[1] - b[1]) ); //distance a,b

		if( ab > (a[2] + b[2]) ) std::cout << 0 << std::endl;
		
		else if ( a[2] > ab + b[2] ) std::cout << 2 << std::endl;

		else if ( b[2] > ab + a[2] ) std::cout << -2 << std::endl;

		else std::cout << 1 << std::endl;

	}
	return 0;
}