UVA11223 O: dah dah dah!

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=2164 [PDF](https://uva.onlinejudge.org/external/112/p11223.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11223/c0d94372ee2a9c8fa8c94c700f5c0684c1574c41.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11223/28454bdc6b77eba3842655407855f3013e751175.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11223/acf25d81e748f58fc8a4b52d001406cb68fafda1.png)