3 + 2 + 2 1 - 2 . 1 , 2 , 1 . ... 2 . 2 - 2 , , 2 , ...2 . 3 2 , 2 ...2 . 4 2 , 3 ... 5 2 2 5 , , , : 64 , 64 . , 25 , 14 . 3 3 . , http://www.youtube.com/watch?v=yKH_JW13CfM