Determine the Shape

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=226&page=show_problem&problem=2900 [PDF](https://uva.onlinejudge.org/external/118/p11800.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11800/a432d36e486b05289dc5e158f596f11b15abc707.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11800/275f97e3f03222dd0db7ad500dbb1f7e159be822.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11800/2473f64d4c076d0d9495d2530cec78b2dc2c1dee.png)

输入输出样例

输入样例 #1

6
0 0
2 0
2 2
0 2
0 0
3 0
3 2
0 2
0 0
8 4
5 0
3 4
0 0
2 0
3 2
1 2
0 0
5 0
4 3
1 3
0 0
5 0
4 3
1 4

输出样例 #1

Case 1: Square
Case 2: Rectangle
Case 3: Rhombus
Case 4: Parallelogram
Case 5: Trapezium
Case 6: Ordinary Quadrilateral