UVA13139 Lucas Numbers

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=871&page=show_problem&problem=5050 [PDF](https://uva.onlinejudge.org/external/131/p13139.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13139/1b3adcec3d2f959f3317b997283da79cb28a2366.png)

Input Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13139/99d25412e2eed8bbda2247344c85d8d228403412.png)

Output Format

![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA13139/8e0f551cec02cdc983ceffd0041972e659e704a9.png)