I want to study guitar playing but I'm total noob in this. So, how to choose guitar in shop which is tuned as well? Maybe you will advice me some brands which are tuned good by default?
I'm afraid tuning is something which is done and maintained, for the most part, by the store. If you're asking about good beginner instruments, I'd recommend Yamaha as they have excellent quality-control (so you're unlikely to find a bad one) and are very competitively priced (so if you decide to not stick with it, you haven't wasted too much money).
Seeing as beginners often have difficulty determining good instruments from bad, I'd also recommend bringing a friend with you who already plays if possible.