A-1 Appliances needs a program that allows the store clerks to enter the number of dishwashers in stock at the beginning of the month, the number purchased during the month, and the number sold during the month. The program should calculate and display the number of dishwashers in stock at the end of the month. To test the program use the following: 5000 as the number of dishwashers at the beginning of the month, 1000 as the number purchased, and 3500 as the number sold. 450, 20, and 125.