I will show you how to get data from users and display results. Without input, your programs can only work with hardcoded values. Without formatted output, your results look messy. you'll see to read different data types, handle user mistakes, and format numbers precisely.
I will show you the problems that occur when you mix input methods incorrectly, and how to fix them. By the end, you will write programs that read user data reliably, validate inputs to prevent crashes, and display results in clean, readable formats.