풀이
def distance_square(x, y):
return ((x**2) + (y**2))
T = int(input())
for tc in range(1, T+1):
x1, y1, r1, x2, y2, r2 = map(int, input().split())
dist_square = distance_square((x2-x1), (y2-y1))
if r1**2 == r2**2 and dist_square == 0:
print(-1)
elif dist_square > (r1+r2)**2 or dist_square < (r2 - r1)**2 :
print(0)
elif dist_square == (r1+r2)**2 or dist_square == abs(r1-r2)**2:
print(1)
else:
print(2)