The scalar variable Cost represents how much an item costs and the scalar variable CashPaid represents the amount of cash presented for the item. You can assume that Cost is less than or equal to CashPaid. Available denominations are listed (descending from largest to smallest) in an variable Bills. For example, it could be Bills = [100, 50, 20, 10, 5, 2, 1). Note that the values in Bills will always be descending, from largest to smallest, and the smallest element will always be 1. Write code that assigns to an array change the number of bills that the seller should give back to the buyer, element-by-element associated with the denominations in Bills. Since this is not unique (seller could always choose to return change using only $1 bills), further restrict it to consist of the minimum possible number of bills, making the Change array unique and well-defined. Use a for loop, and draw the denominations from the array named Bills defined in the template file. Your code should actually work for any sorted (descending) positive integer values in Bills, not just the specific values given above. Note that CashPaid-Cost should equal sum(Bills. *Change). Why?