Go: package main

import (
	"fmt"
	"math"
)

func main() {
	var n int
	fmt.Scan(&n)
	for i := 0; i < n; i++ {
		var xa, ya, ra, xb, yb, rb float64
		fmt.Scan(&xa, &ya, &ra, &xb, &yb, &rb)
		// println(xa, ya, ra, xb, yb, rb)
		dis := math.Sqrt((xa-xb)*(xa-xb) + (ya-yb)*(ya-yb))
		if dis + ra < rb {
			fmt.Println(-2)
		} else if dis + rb < ra {
			fmt.Println(2)
		} else if dis > rb + ra {
			fmt.Println(0)
		} else {
			fmt.Println(1)
		}
	}
}

Python: # -*- coding:utf-8 -*-

def main():
    import math
    for i in range(int(input())):
        xa,ya,ra,xb,yb,rb=map(float,input().split())
        d=math.sqrt((xa-xb)**2+(ya-yb)**2)
        if d>ra+rb:
            print(0)

        elif ra+rb>=d and d>=abs(ra-rb):
            print(1)

        elif d<abs(ra-rb):
            if ra>rb:
                print(2)
            elif ra<rb:
                print(-2)
        
            
    
        
if __name__ == '__main__':
    main()

Python: n = int(input())
for i in range(n):
    xa,ya,ra,xb,yb,rb = map(float,input().split())
    dis = (xa - xb)**2 + (ya - yb)**2
    if dis > (ra + rb)**2:
        print(0)
    elif rb > ra and dis < (rb - ra)**2:
        print(-2)
    elif ra > rb and dis < (ra - rb)**2:
        print(2)
    elif (ra - rb)**2 < dis < (ra + rb)**2:
        print(1)

Python: import math
N = int(input())
for _ in [0]*N:
    x1, y1, r1, x2, y2, r2 = map(float, input().split())
    dist = math.hypot(x2-x1, y2-y1)
    if dist+r2 < r1:
        print(2)
    elif dist+r1 < r2:
        print(-2)
    elif dist <= r1+r2:
        print(1)
    else:
        print(0)

Python: n=input()
for i in xrange(n):
	xa,ya,ra,xb,yb,rb=map(int,raw_input().split())
	d=(xa-xb)**2+(ya-yb)**2
	if d>(ra+rb)**2:
		print(0)
	elif ra>rb:
		if (ra-rb)**2>d:
			print(2)
		else:
			print(1)
	else:
		if (rb-ra)**2>d:
			print(-2)
		else:
			print(1)

Python: import math
def aux(v):
    [xa,ya,ra,xb,yb,rb] = v
    ab = math.sqrt((xb-xa)**2 + (yb-ya)**2)
    if ab > ra + rb:
        rst = 0
    elif ab + rb < ra:
        rst = 2
    elif ab + ra < rb:
        rst = -2
    else:
        rst = 1      
    return(rst)    

if __name__ == "__main__": 
    n = int(input())
    for i in range(n):
        v = list(map(float, input().split()))
        print(aux(v))

Python: import math

N = eval(input())
for _ in range(N):
	[Xa,Ya,Ra,Xb,Yb,Rb] = [float(element) for element in input().split()]
	distance = math.sqrt((Xa - Xb)**2 + (Ya - Yb)**2) # Compute distance from point A to point B
	if Ra - Rb > distance: # B in A
		print(2)
	elif Rb - Ra > distance: # A in B
		print(-2)
	elif Ra + Rb > distance: # Intersect
		print(1)
	else: # Not overlap
		print(0)

Python: n = int(input())
for i in range(n):
    xa,ya,ra,xb,yb,rb = map(float,input().split())
    if (xa - xb)**2 + (ya - yb)**2 > (ra + rb)**2:
        print(0)
    elif rb > ra and (xa - xb)**2 + (ya - yb)**2 < (rb - ra)**2:
        print(-2)
    elif ra > rb and (xa - xb)**2 + (ya - yb)**2 < (ra - rb)**2:
        print(2)
    elif (ra - rb)**2 < (xa - xb)**2 + (ya - yb)**2 < (ra + rb)**2:
        print(1)

Python: from math import sqrt
num = int(input())
for _ in range(num):
    xa, ya, ra, xb, yb, rb = [float(el) for el in input().split(' ')]
    d = sqrt((xa-xb)**2 + (ya-yb)**2)
    if d < ra + rb:
        if ra > rb and d < ra - rb:
            print(2)
        elif rb > ra and d < rb -ra:
            print(-2)
        else:
            print(1)
    else:
        print(0)

Python: for _ in[0]*int(input()):
 x,y,r,s,t,u=map(float,input().split())
 d=((x-s)**2+(y-t)**2)**.5
 print([[[1,2][d<u-r],[1,2][d<r-u]][r>u],0][r+u<d])

Python: 
import math

N = eval(input())
for _ in range(N):
	[Xa,Ya,Ra,Xb,Yb,Rb] = [float(element) for element in input().split()]
	distance = math.sqrt((Xa - Xb)**2 + (Ya - Yb)**2) # Compute distance from point A to point B
	if Ra - Rb - distance > -10E-8: # B in A
		print(2)
	elif Rb - Ra - distance > -10E-8: # A in B
		print(-2)
	elif Ra + Rb - distance > -10E-8: # Intersect
		print(1)
	else: # Not overlap
		print(0)

Python: import math

n = int(input())

for _ in range(n):
    xa,ya,ra,xb,yb,rb = map(float, input().split())
    len=math.sqrt((xa-xb)**2+(ya-yb)**2)

    if len + rb <= ra:
        print("2")
    elif len <= ra + rb:
        print("1")
    else:
        print("0")

Python: 

import math


num = int(input())

for i in range(num):
    ax,ay,ar,bx,by,br = map(float,input().split(' '))
    d = (ax - bx)*(ax - bx) + (ay * by)
    if d < (br - ar):
            print(2)
    if d < (ar - br):
            print(-2)
    elif d <= (ar + br):
        print(1)
    else:
        print(0)

Python: n = int(input())
for _ in range(n):
    xa,ya,ra,xb,yb,rb = map(float, input().split())
    dr = ((xa-xb)**2+(ya-yb)**2)**0.5
    if rb > (ra+dr):
        print(-2)
        continue
    elif ra > (rb+dr):
        print(2)
        continue
    elif dr > (ra+rb):
        print(0)
        continue
    else:
        print(1)

Python: for _ in range(int(input())):
    xa, ya, ra, xb, yb, rb = list(map(float,input().split()))
    dAB = ((xa - xb) ** 2 + (ya - yb) ** 2) ** 0.5
    if ra + rb < dAB:
        print('0')
    elif dAB + rb < ra:
        print('2')
    elif dAB + ra < rb:
        print('-2')
    else:
        print('1')

Python: import math
for i in range(int(input())):
    xa, ya, ra, xb, yb, rb = list(map(float, input().split()))

    d1 = (xa - xb) ** 2 + (ya - yb) ** 2
    d2 = ra ** 2 + rb ** 2
    dr = (ra-rb) ** 2

    if d1 <= d2:
        if dr >= d1:
            print(2 if ra > rb else -2)
        else:
            print(1)
    else:
        print(0)

Python: n = int(input())
for i in range(n):
    xa, ya, ra, xb, yb, rb = map(float, input().split())
    distsq = (xa-xb)**2 + (ya-yb)**2
    if distsq < (ra-rb)**2:
        if ra < rb:
            print(-2)
        else:
            print(2)
    elif (ra-rb)**2 <= distsq <= (ra+rb)**2:
        print(1)
    else:
        print(0)

Python: import math
for _ in range(int(input())):
    xa, ya, ra, xb, yb, rb = map(float, input().split())
    d = math.sqrt((xb - xa) ** 2 + (yb - ya) ** 2)
    if ra + rb < d:
        print(0)
    elif d + ra < rb:
        print(-2)
    elif d + rb < ra:
        print(2)
    else:
        print(1)

Python: 
import math

N = eval(input())
for _ in range(N):
	#[Xa,Ya,Ra,Xb,Yb,Rb] = [float(element) for element in input().split()]
	[Xa,Ya,Ra,Xb,Yb,Rb] = map(float,input().split())
	distance = math.sqrt((Xa - Xb)**2 + (Ya - Yb)**2) # Compute distance from point A to point B
	if Ra - Rb > distance: # B in A
		print(2)
	elif Rb - Ra > distance: # A in B
		print(-2)
	elif Ra + Rb > distance: # Intersect
		print(1)
	else: # Not overlap
		print(0)

Python: 
import math

N = eval(input())
for _ in range(N):
	[Xa,Ya,Ra,Xb,Yb,Rb] = [float(element) for element in input().split()]
	distance = math.sqrt((Xa - Xb)**2 + (Ya - Yb)**2) # Compute distance from point A to point B
	if Ra - Rb - distance > -10E-16: # B in A
		print(2)
	elif Rb - Ra - distance > -10E-16: # A in B
		print(-2)
	elif Ra + Rb - distance > -10E-16: # Intersect
		print(1)
	else: # Not overlap
		print(0)

Python: from numpy import *
N=int(input())
x_a=[0]*N
y_a=[0]*N
r_a=[0]*N
x_b=[0]*N
y_b=[0]*N
r_b=[0]*N
for i in range(N):
    x_a[i],y_a[i],r_a[i],x_b[i],y_b[i],r_b[i]=map(float,input().split())
for i in range(N):
    a=array([x_a[i]-x_b[i],y_a[i]-y_b[i]])
    AB=linalg.norm(a)
    r_diff=abs(r_a[i]-r_b[i])
    if AB > r_a[i]+r_b[i]:
        print(0)
    elif r_a[i]+r_b[i] >= AB and AB >= r_diff:
        print(1)
    else:
        if r_a[i] > r_b[i]:
            print(2)
        else:
            print(-2)

Python: for _ in range(int(input())):
    xa, ya, ra, xb, yb, rb = list(map(float,input().split()))
    dAB = ((xa - xb) ** 2 + (ya - yb) ** 2) ** 0.5
    if ra + rb < dAB:
        print('0')
    elif dAB + rb < ra:
        print('2')
    elif dAB + ra < rb:
        print('-1')
    else:
        print('1')