The Deadly Olympic Returns!!!

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=19&page=show_problem&problem=1735 [PDF](https://uva.onlinejudge.org/external/107/p10794.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10794/33dbbf923787d7eb5c249c3acd9193e55ff456d5.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10794/531d156dd18ed92c5ff5202946c22536337cab0b.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10794/8c62bb29abc720ab167dc397b0952a04792b2dae.png)

输入输出样例

输入样例 #1

2
1
0 0 0 1 0 0
0 -1 0 0 -2 0
4
0 0 0 1 0 0
-1 0 0 -2 0 0

输出样例 #1

Case 1: 1.0000
Case 2: 1.0000