write a program that operates like a cashier terminal in an auto parts store. It begins by prompting for the number of different items being purchased and then starts a loop. In the loop, the program should prompt for the item description, part number, price and quantity of each item being purchased. These four values should be passed as arguments to a custom function that is defined in a separate module file. The imported function should print the subtotal for the item and return it to main. The total should be printed in main after the loop ends.