Write a program with comprehensive explanation that calculates a customers bill for a local cable company. There are two types of customers: residential and business. There are two rates for calculating a cable bill: one for residential customers and one for business customers. For residential customers, the following rates apply: Bill processing fee: $4.50 Basic service fee: $20.50 Premium channels: $7.50 per channel For business customers, the following rates apply: Bill processing fee: $15.00 Basic service fee: $75.00 for first 10 connections, $5.00 for each additional connection Premium channels: $50.00 per channel for any number of connections The program should ask the user for an account number (an integer) and a customer code. Assume that R or r stands for a residential customer, and B or b stands for a business customer. Input: The customers account number, customer code, number of premium channels to which the user subscribes, and, in the case of business customers, number of basic service connections. Output: Customers account number and the billing amount.