A local cinema charges £8.50 per ticket for a movie screening. If a group purchases 8 or more tickets together, a flat discount of £10 is applied to the overall total.

Write a Python program to calculate and output the total cost for a group booking.

The program must:

• Prompt the user to enter the number of tickets required as a whole number.
• Calculate the total cost by:
  • charging £8.50 per ticket
  • applying a £10 discount if the number of tickets is 8 or more
• Output the final calculated cost with an appropriate message.

You should use meaningful variable names and correct Python syntax in your answer.