UVA10957 So Doku Checker

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=21&page=show_problem&problem=1898 [PDF](https://uva.onlinejudge.org/external/109/p10957.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10957/cf70741332e74f28c67095198e0fd8f32fb51305.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10957/c38e520760882d74b2aa09cade66096b52d299b2.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10957/dd7087f86951b5272fab719b9b2711aad1656dfd.png)