this code run proper in my machine in python 3.
I would like to give some feedback about ...
From: https://py.checkio.org/mission/right-to-left/solve/
HTTP_USER_AGENT:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36