30 Days Of Python

Firstly you made a mistake naming the argument you're passing to function as 'b' but what u are using inside the function is 'k' (which I think it'd raise an error saying that k is not initialized or sth like this when u run the code) Another thing that u gotta note is that ur function returns a list so it doesnt print the result just by calling it. U can put it in a print func or store it in a variable and then print that out.