Write a program that can be used to calculate discount and final amount due by a customer. Discount is calculated based on the number of items bought. Your program should prompt the user for an amount due $($amount before discount$)$ as well as the number of items bought.

Your program may assume that only valid values will be entered by the user. Discount is calculated according to the following:

$\backslash$table$[[$Number of items bought,Discount amount $/$ percentage$],[$Less than $4,$R$10$ discount$],[4$ or more, less than $10,7\%$