4, 1 layer (open door), 6, 1 story, (Open the door), 2 layers and 3 cells, 8, 2 layers and 4 grids, 10, 2 layers and 5 grids, 12, 2 layers 6 grid, 3 layers and 4 grids (open door), 16, 2 layers of 8 grids (open doors), 4 layers and 4 grids (open door), 24, 4 layers of 6 grids (open door), 30, 5 layers of 6 grids (open door), 35, 5 layers of 7 grids (open doors), 48, 6 -layer 8 grid (the door opens the door)
