照亮体育馆 Barisal Stadium

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=18&page=show_problem&problem=1582 [PDF](https://uva.onlinejudge.org/external/106/p10641.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10641/58b2837360d2303c95a84bab1d6df8c47fb235bc.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10641/5cd2bab3cb1ba74e4d13ec773f43cff92e7afac9.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10641/602e678982dc7734302b9c00c4463c55516c27da.png)

输入输出样例

输入样例 #1

3
0 0
10 0
0 10
3
-1 -1 10
11 -1 10
-1 11 10
3
0 0
10 0
0 10
3
-1 -1 10
11 -1 10
-1 12 10
0

输出样例 #1

Impossible.
20