Circles Intersection

Time Limit : 1 sec, Memory Limit : 131072 KB
Japanese version is here

Circles Intersection

You are given circle $A$ with radius $r_a$ and with central coordinate $(x_a, y_a)$ and circle $B$ with radius $r_b$ and with central coordinate $(x_b, y_b)$.

Write a program which prints:

  • "2" if $B$ is in $A$,
  • "-2" if $A$ is in $B$,
  • "1" if circumference of $A$ and $B$ intersect, and
  • "0" if $A$ and $B$ do not overlap.

You may assume that $A$ and $B$ are not identical.


The input consists of multiple datasets. The first line consists of an integer $N$ ($N \leq 50$), the number of datasets. There will be $N$ lines where each line represents each dataset. Each data set consists of real numbers:

$x_a$ $y_a$ $r_a$ $x_b$ $y_b$ $r_b$


For each dataset, print 2, -2, 1, or 0 in a line.

Sample Input

0.0 0.0 5.0 0.0 0.0 4.0
0.0 0.0 2.0 4.1 0.0 2.0

Output for the Sample Input


Source: PC Koshien 2003 , All-Japan High School Programming Contest, Aizu-Wakamatsu, Japan, 2003