UVA213 信息解码 Message Decoding

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=4&page=show_problem&problem=149 [PDF](https://uva.onlinejudge.org/external/2/p213.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA213/9340e3ff8ff8441ea7eb703f93537c47ff70598c.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA213/4260f73fa0b027409fa6d97c233479e4dbdc3dcd.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA213/13bf5c4546534e2875ec1ffea2658a273e2d3ecf.png)