Write a password generator that prompts the user for his or her last name. The program creates a password consisting of the first three letters of the user’s last name concatenated with a random...

Write a password generator that prompts the user for his or her last name. The program creates a password consisting of the first three letters of the user’s last name concatenated with a random number between 0 and 1000. For security reasons, a new random number is atomically generated (on a separate thread) every .5 seconds. Print the resulting password