UVA10764 Signed-digit numbers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=19&page=show_problem&problem=1705 [PDF](https://uva.onlinejudge.org/external/107/p10764.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10764/126d2371fcb85b3f70e56261ca5b7654374e173d.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10764/21b11c33264c275f5cac46ddf3d529e57716b97d.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10764/8327e49b665815130704d5d26667850ba947d951.png)