You have been asked to write a program to calculate sales totals for a corner store. Your program will not know how many products each customer will buy, so your program will have to repeat the process until the last product has been entered $($use $-1$ for Product ID to end each sale$).$ After each sale your program must ask if you want to do another sale $($y continue, n end program$).$At the beginning of the day, the cash drawer has $$100$ in it$.$ At the end of the program you must display how much money is in the drawer after handling all your sales transactions.InputYour program must take the following input: Product ID Number $($int$)$ Quantity for each item purchased $($int$)$