SAM I AM

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=26&page=show_problem&problem=2414 [PDF](https://uva.onlinejudge.org/external/114/p11419.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11419/9bfecd5c3e6bbf066b09dc3d6eea1aea7a5eca6d.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11419/bfdd623fae19643a7116a376a9eb6f40e99cf392.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA11419/56eaf4b1a49dc230a4205d2eb043a6938d5d4637.png)

输入输出样例

输入样例 #1

4 4 3
1 1
1 4
3 2
4 4 2
1 1
2 2
0 0 0

输出样例 #1

2 r1 r3
2 r1 r2