Check list:

• Created a folder with the name of language you code inside /day40/ directory (https://github.com/CodeToExpress/dailycodebase/tree/master/day40)
• Added your Codes
• Tested your codes
• Added credits (author and date) at the top of the code
• Updated README.md - https://github.com/CodeToExpress/dailycodebase/blob/master/day40/README.md
• Added yourself

What is the issue that you are facing?
Every year new students are enrolled for different courses and there might be a need for buying books. But mostly the course books followed in our college are the same, for years. But due to lack of time and communication, students end up buying new books. It would be better if the books could be passed to the new course enrollees.

**How often do you