Weights and Measures

题目描述

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=13&page=show_problem&problem=1095 [PDF](https://uva.onlinejudge.org/external/101/p10154.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10154/c29ed6cce99dc9e3052d764393c705794c12e076.png)

输入输出格式

输入格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10154/ceec69eaaace6da41513335f7cc0376e2ac2ca7d.png)

输出格式


![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA10154/dfac24d42709adece26e7d5794c4e00bfe684c0a.png)

输入输出样例

输入样例 #1

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输出样例 #1

3