I had a little bad luck. I guessed the correct URL for ADN-219, but the Russian server didn't have the data, so it couldn't play it. I tried ADN-115, and it worked. We may have found a working pattern for the Russian servers.
Replace "ADN-115" with the code of the video you want, and this will work for any video that's hosted on Russian servers. However, many of their recent uploads are not on their Russian servers.