Write a program that computes the income tax for an individual. The program should ask the user
to enter the total taxable income of the year. The program then uses the tax bracket (as shown below) to
calculate the tax amount:
 10% on taxable income from $0 to $9,325, plus
 15% on taxable income over $9,325 to $37,950, plus
 25% on taxable income over $37,950 to $91,900, plus
 28% on taxable income over $91,900 to $191,650, plus
 33% on taxable income over $191,650 to $416,700, plus
 35% on taxable income over $416,700 to $418,400, plus
 39.60% on taxable income over $418,400
(1) The program should display the total tax due to the user.
(2) The program should show an error message if the user enters a negative number.