Why is my code printing 4 iterative lists instead of 1 whole list?

I cannot for the life of me understand why my code is making 4 separate lists with the elements iterating on each other instead of making 1 list with each element together… please help me comprehend.

Rather than looking at the end result and seeing it’s wrong, maybe take a look at the things you did to get there? Same as how you can print out the final result, so too can you print out intermediary results, and then you can find out where you’re getting that from.