This problem will provide you with an opportunity to demonstrate your understanding of reading from and writing to plain text files from your Python programs.$$

Instructions:

Write a program that writes user input to a text file and then reads the contents from that file. You will need to perform the following steps.

Prompt the user for the name of a file to append to and then another prompt for them to enter a sentence.$$

Open the file they requested in append mode and write the user$\_$sentence to this file. Don't forget to close the file when you are done writing to it $($explicitly or implicitly$).$

Open the file you just wrote to in read mode and read the contents of the file.

Print the complete file contents to the console$/$shell$.$

Provide comments in your code to explain the logic used.

Ensure your program works as expected by testing it with different sentences.$$

When your program runs, it should match the expected output below but should work for any valid user input.