Focus with three cards

A widely spread and very famous trick with three cards. In order to perform this trick, you need three cards: one card is a figured one (with a jack, a queen, a king or an ace) and two simple cards (any cards are younger than a jack). Put these cards face down on the table. Hold one card between the ring finger and the thumb of your left hand, and keep the other two between your thumb and thumb and between the ring finger and the thumb of your right hand. Cut and spread your hands very quickly several times, throw these cards on the table face down and ask any of the spectators to say which of the cards is a figured map. The essence of the focus is that the viewer is completely impossible to guess this card. If you very quickly act with your hands, then the viewer will not see which card falls from the right hand of the first.