The Shop of Horrors is bustling with activity. It won't be long before shoppers flock to it as Halloween approaches. The shop is open only a month a year to provide everyone with unusual creepy items and attributes to decorate the house for the holiday, make a gift or choose a costume. Before opening, you need to wipe off dust from the shelves and fill them with goods. This is what you will do in the Halloween Store Sort, first you need to empty the shelves. Move items to the shelf so that three identical ones stand next to each other. Once this happens, the shelf will disappear in the Halloween Store Sort.