UVA11312 Flipping Frustration

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=25&page=show_problem&problem=2287 [PDF](https://uva.onlinejudge.org/external/113/p11312.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11312/93097ffe84cd6321b2b070b3593127db2d273cb3.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11312/17a9327f6e5ff15c382f9d1208f6917c61e2c41b.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11312/a1c62f33f88d1fb8cbde5a8b8caff39f0b41a46c.png)