Problem
A. What is the program all about? Short description about how it works and its function.
B. What are the input variables of the program? List them down and explain each.
C. What are the output variables of the program? List them down and explain each.
D. What is the step by step process of the program? Explain each process.
E. List down the top 5 main codes used in the program. Its description and function on how it works.