1.该OJ由于交换空间受限,暂不不支持万能头文件:bits/stdc++.h!!! 2.该OJ如果是长整型的话,C的输入输出请使用%lld!!!

Problem 1015. -- Tetrahedrons and Spheres

1015: Tetrahedrons and Spheres

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 0  Solved: 0
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Description

There are a tetrahedrons and b spheres in the 3D-splace, you’re asked to calculate the volume occupied by at least one of them (i.e. volume of the union of the objects).

 

Input

There will be at most 20 test cases. Each case begins with two integers a, b, the number of tetrahedrons and the number of spheres (1<=a,b<=5). The next a lines each contains 12 integers: x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4, the coordinates (xi, yi, zi)(1<=i<=4) of the four vertices  of a tetrahedron. The next b lines each contains 4 integers x, y, z, r, the coordinates of the center (x, y, z) and the radius r (r<=3). All the coordinate values are integers with absolute values no more than 5. The input is terminated by a=b=0.

 

Output

For each test case, print a single line, the volume occupied by at least one of them, rounded to three decimal points.

 

Input

Output

Sample Input

1 1
0 0 4 1 0 4 0 1 4 0 0 5
0 0 0 1
0 0

Sample Output

4.356

HINT

Source

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