Write a program to input a purchase amount and calculate the sales tax and total do. The SalesTax depends on the county identifying code. County's with a number less than eight have a 5% sales tax. The 8-20 Kos have a sales tax of 6%. Codes above 20 have a sales tax of 7%. The purchase amount in county code entered by the user. Use a loop to validate that the county code is between five and 30. Display the amount of the sales tax and the total.