4. Through the screwdriver or a coin they remove a round hat that is located in a ceiling and jailer closes a nest.
5. Insert the end of reduction of a key doubled in a nest of union of walk of hatch of roof. To make spinning the key doorknob in the direction of the movement of the pointers of the clock, completely near the roof hatch.
6. Take away a key of a nest of the union and establish a hat at the place.