Fuzzing: Breaking Things With Random Inputs - Error for airport code "IST" is wrong

[vladimirpootin]

Describe the bug
Fuzzing: Breaking Things With Random Inputs, Section 6.2 has an error code for the airport with code "IST". The error code shows as if it was run for YMML. There is no error.

To Reproduce
Steps to reproduce the behavior:

1. Go to Fuzzing: Breaking Things With Random Inputs
2. Scroll down to "6.2 Program Specific Checkers"
3. See error

Expected behavior
The code should run correctly based on the input.

Screenshots
If applicable, add screenshots to help explain your

[ajay-banstola]

@vladimirpootin The whole point of add_new_airport_2 function is to ensure the correct representation of the list of airport codes – before and after changing it. In this case, the 'YMML' code was introduced in the airport_codes list. In the add_new_airport_2 function, we check for each of the items in the list to satisfy the condition before adding the 'IST' code to the list. Thus, the error. This is not an issue.