Write a program that prompts the user to enter a length in feet and then enter a length in inches and outputs the equivalent length in centimeters. If the user enters a negative number or a non$-$digit number, throw and handle an appropriate exception and prompt the user to enter another set of numbers.

Your error message should read A non positive number is entered and allow the user to try again.

Format your output with setprecision$(2)$ to ensure the proper number of decimals for testing!

Task #$01$: Throwing an exception

Task #$02$: Converting to centimeter