package backjoon;
// https://www.acmicpc.net/problem/1002
// í„°ë ›
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class _1002 {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
// memory 11840 runtime 96
int caseCnt = Integer.parseInt(br.readLine());
for(int i=0; i 무한대
if(x1 == x2 && y1 == y2 && r1 == r2) {
System.out.println(-1);
}
// ë‘ ì›ì´ 만나지 ì•Šì„ë•Œ
else if(distance_pow > Math.pow(r1 + r2, 2)) {
System.out.println(0);
}
// ì› ì•ˆì— ì›ì´ 있으나 ë‚´ì ‘í•˜ì§€ ì•Šì„ ë•Œ
else if(distance_pow < Math.pow(r2 - r1, 2)) {
System.out.println(0);
}
// ë‚´ì ‘
else if(distance_pow == Math.pow(r2 - r1, 2)) {
System.out.println(1);
}
// ì™¸ì ‘
else if(distance_pow == Math.pow(r1 + r2, 2)) {
System.out.println(1);
}
else {
System.out.println(2);
}
}
}
}
/*
input
3
0 0 13 40 0 37
0 0 3 0 7 4
1 1 1 1 1 5
output
2
1
0
*/