1. (35 points) Write a program that computes a patient's bill for a hospital stay. The different components of the program are: a. The PatientAccount class b. The Surgery class c. The Pharmacy class d. The main program The PatientAccount class keeps a total of the patient's charges in variable TotalCharges. It will also keep track of the number of days spent in the hospital. ($500 per day) The Surgery class will have stored within it the charges for at least five types of surgery (S1:$100, S2:$200, S3:$300, S4:$400, S5:$500). It can update the TotalCharges variable of the PatientAccount class. The Pharmacy class will have stored within it the price of at least five types of medication (M1:$10, M2:$20, M3:$30, M4:$40, M5:$50). It can update the TotalCharges variable of the PatientAccount class. The main program has a menu that allows the user to enter a type of surgery, a type of medication, number of days of hospital stay, and check the patient out of the hospital. When the patient checks out, the total charges should be displayed