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. Light travels at $3*10$ meters per second. A light$-$year is the distance a light beam travels in one year.