The first line of input contains the number of test cases T. The descriptions of the test cases
Each test case consists of one line containing the number of wheels n (1《 n≤ 1000) . Each
of the following lines contain three integers x, y and r (-10 000 < x, y < 10 000; I≤ r≤ 10 000)
where (x, y) denote the Cartesian coordinates of the wheel's center and r is its radius.