UVA215 电子表格计算器 Spreadsheet Calculator

Description

[problemUrl]: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=4&page=show_problem&problem=151 [PDF](https://uva.onlinejudge.org/external/2/p215.pdf) ![](https://cdn.luogu.com.cn/upload/vjudge_pic/UVA215/8751092292083297b903e80be78e9b0c38df00de.png)

Input Format

N/A

Output Format

N/A