#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    double xa, ya, ra, xb, yb, rb;
    int n;
    cin >> n;
    rep(i, n)
    {
        cin >> xa >> ya >> ra >> xb >> yb >> rb;
        double d = sqrt(pow((xa - xb), 2) + pow(ya - yb, 2));
        if (d > ra + rb)
            OP(0);
        else
        {
            if (d + rb < ra)
                OP(2);
            else if (d + ra < rb)
                OP(-2);
            else
                OP(1);
        }
    }

    return 0;
}
