UVA175 Keywords

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=111 [PDF](https://uva.onlinejudge.org/external/1/p175.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA175/6ceae87b8563a5935763cc8724a8dc63fb46f3c7.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA175/804cdafd6c8358d269b9a54908c452374da714b7.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA175/92a5cf16d42a47951ced31a4863d4981a21fbf25.png)