Python: A De$/$Coder$.$ Think back to $3$rd grade when you passed notes to friends in class. We can't let the teacher see what we're writing so we used a code. A$=1,$ B$=2,$ C$=3,$ etc. Or a "Caesar Cipher", look it up if needed!

Your job is to create a program which does the following:

Presents the user with a menu choice: encode or decode

Depending on what they chose you will either encode letters into numbers $($seperated by dashes$)$ or decode a series of numbers $($separated by dashes$)$ into letters.

For example:

"How are you?" would encode as $"8-15-231-18-525-15-21?"$

$"8-15-231-18-525-15-21"$ would decode as "How are you?"

Remember to use all the tools in your arsenal, especially mainline logic, functions, loops, and error handling.

Don't use chr$()$ or ord$()$