Your code is wrong, and it duplicates the first char number. The kata is fine. Read the error message for the first sample test:

expected '20 20 8 5 19 21 14 19 5 20 19 5 20 19 1 20 20 23 5 12 22 5 15 3 12 15 3 11' 
to equal '20 8 5 19 21 14 19 5 20 19 5 20 19 1 20 20 23 5 12 22 5 15 3 12 15 3 11'

There are two 20s there, instead of skipping the kata, try fixing your code. That's the only way to learn.

well... you can print it

def bouncing_ball(h, bounce, window):
    print(f'h      = {h}')
    print(f'bounce = {bounce}')
    print(f'window = {window}')