For this exercise, write a program that contains an introductory docstring. This documentation should describe what the program will do $($analysis$)$ and how it will do it $($design the program in the form of a pseudocode algorithm$).$ Include suitable prompts for all inputs, and label all outputs appropriately. After you have coded a program, be sure to test it with a reasonable set of legitimate inputs.

Instructions

You can calculate the surface area of a cube if you know the length of an edge.Write a program in cube.py that takes the length of an edge $($an integer$)$ as input and prints the cube$$s surface area as output.