UVA13087 Virus RNA

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=866&page=show_problem&problem=4985 [PDF](https://uva.onlinejudge.org/external/130/p13087.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13087/1034cb06cc475de0e969375d5576758e7d60001d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13087/9f674d4447d3c66e72dc80a7deae745ef7a1cd24.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13087/fe171d58a3b5a6bd7ab7919fd8bdaea7a8473319.png)