A random seed that makes tests fail the same way every time?

I've never worked with the random library and I'm a bit confused about what this fixme statement is asking me to do. Is there a seed number that specifically does this?

The code is making an ordered list ADT and this file is testing the functions within that file. We use the random library to create random numbers that will be added into, or removed from the ordered list ADT.

Please let me know if there's any other information I should give!