Aha, I suspected that. However, I'd been offered membership via response to one of mine articles, written in my native Russian (I prefer Russophone audience, though articles in Russian and English are mixed freely), and some ambiguities remained. So I thought a little test would solve it better than unnecessary reply chain. I'll think about translation.
Sorry for a little inconvenience. (I had but remembered a precious snippet from Brother 2; in translation it says, in the words of Russian gangster screaming, being dragged to police car during arrest, I’M STAYING! I’M STAYING! I WILL LIVE HERE!)