I would like to give some feedback about ...
From: https://py.checkio.org/mission/non-unique-elements/solve/
HTTP_USER_AGENT:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2943.0 Safari/537.36
Created at: 2017/02/05 19:29; Updated at: 2017/02/06 15:35