I would like to give some feedback about ...

From: http://www.checkio.org/mission/median/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.3.0

Final test not working accordingly. I just copied code to my local machine and started the test 5/5, and script gave me right answer.