Write a C# program that inputs a single character and checks to see if it is an uppercase letter.

Your program should work as follows:

• Prompt the user to enter a single character and store it in a suitable variable.
• Determine if the entered character is an uppercase letter (between 'A' and 'Z' inclusive).
• Output UPPERCASE if the user has entered an uppercase letter.
• Output NOT UPPERCASE if the user has entered any other character.

You should use meaningful variable name(s), correct C# syntax, and indentation in your answer.