1. The User Interface above is displayed when the "Python code for Tkinter UI" code is run.
2. Click on the "Python code for Tkinter UI" and read the program, with comments, to get the gist of how it works.
3. Your initial task is to write a separate program to input a 4 character string and output the reverse of that string. This is one of the tasks in the main lesson on Strings.
4. When your code is working and tested, you have to incorporate your code into the "Python code for Tkinter UI" program.
5. Once tested for correct functionality, modify the program to manipulate the string in a different way to change the User Interface (UI).