The cost of renting a room at a hotel is, say $100.00 per night. For special occasions, such as a wedding or conference, the hotel offers a special discount as follows. If the number of rooms booked is: at least 10, the discount is 10% at least 20, the discount is 20% at least 30, the discount is 30%. Also if rooms are booked for at least 3 days, then there is an additional 5% discount. Write a program that prompts the user to enter the cost of renting one room, the number of rooms booked, the number of days the rooms are booked, and the sales tax (as a percent). The program outputs the cost of renting one room, the discount on each room as a percent, the number of rooms booked, the number of days the rooms are booked, the total cost of the rooms, the sales tax, and the total billing amount. Your program must use appropriate named constants to store special values such as various discounts.1. The name of program as a comment at the top of the file.2. IPO chart incorporated as comments after the name of the file.3. A test plan or a screen shot showing the results of your testing.