1. First things first user need to enter their name if the name is empty the program will ask the name again and
       again until name is not empty.

    2. User need to enter their salary that must be over 10000 if salary is not over 10000 the program will be ask
       again.

    3. User need to enter their years worked that also must be between 1 to 10 years if not the program will show
       error message and user need to input the correct year again.

    4. All above are correct and done the program will start calculate the total salary and show the user that their
       salary year by year and total salary.