An express ferry service charges £18 per passenger for a one-way ticket. If a group of passengers contains 8 or more people, they receive an overall group discount of £15 off their total fare.

Write a Python program to calculate the total fare for a group of passengers.

The program must:

• prompt the user to enter the number of passengers in the group
• calculate the total fare by:
  • charging £18 per passenger
  • reducing the total fare by £15 if there are 8 or more passengers
• output the final total fare.

You should use indentation as appropriate, meaningful variable names, and correct Python syntax in your answer.