UVA11615 Family Tree

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=78&page=show_problem&problem=2662 [PDF](https://uva.onlinejudge.org/external/116/p11615.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11615/993d92ccb5954c09195e18315122a488849a7bae.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11615/5834ff87a4f2c1ec4e8f80e7a911ea4c430c8fc3.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11615/59c18ab494eadaebebdceea3c1a06dc6fd6d9b8f.png)