A weird problem about append list

Question

The 'space_c' should contain several 'space', and it should be like '100(1)'. But I found that if I append space into space_c, all of the list in space_c will be the same, just like what is shown in '100'. Did I do anything wrong?

https://code.sololearn.com/cYsFDE5jzAD9/?ref=app

https://code.sololearn.com/c3AjZw2TtPnF/?ref=app

Answer 1

where is your code?