Design a program that calculates and displays the number of miles per hour over the speed limit that a speeding driver was doing. The program should...

Design a program that calculates and displays the number of miles per hour over the speed limit that a speeding driver was doing. The program should ask for the speed limit and the drivers speed. Valid the input as follows.The speed limit should be at least 20, but not greater than 70.The drivers speed should be at least the value entered for the speed limit ( otherwise the driver was not speeding)