#P1453. [Wc]Dface双面棋盘

[Wc]Dface双面棋盘

Description

Input

Output

Samples

输入数据 1

![](https://darkbzoj.cc/JudgeOnline/images/1453_4.jpg)

输出数据 1

![](https://darkbzoj.cc/JudgeOnline/images/1453_5.jpg)

Limitation