[SOLVED]Why dose this string function not work?

Question

the function of the code is to make the input lowercase but it doesn't. Why?

https://code.sololearn.com/c8216sj9v013/?ref=app

Answer 1

input().lower() instead of input(“”.lower())

Answer 2

انور عمر
to what?

Answer 3

TurtleShell thx

Answer 4

hi everyone

Answer 5

what's the anwser plz