27 [] [1] [3,1] [4,3,1] [2,4,3,1] [5,4,3,1] [2,5,4,3,1] [6,5,4,3,1] [4,2,5,4,3,1] [2,6,5,4,3,1] [3,4,2,5,4,3,1] [4,2,6,5,4,3,1] [1,3,4,2,5,4,3,1] [3,4,2,6,5,4,3,1] [5,4,2,6,5,4,3,1] [1,3,4,2,6,5,4,3,1] [3,5,4,2,6,5,4,3,1] [1,3,5,4,2,6,5,4,3,1] [4,3,5,4,2,6,5,4,3,1] [1,4,3,5,4,2,6,5,4,3,1] [2,4,3,5,4,2,6,5,4,3,1] [1,2,4,3,5,4,2,6,5,4,3,1] [3,1,4,3,5,4,2,6,5,4,3,1] [2,3,1,4,3,5,4,2,6,5,4,3,1] [4,2,3,1,4,3,5,4,2,6,5,4,3,1] [5,4,2,3,1,4,3,5,4,2,6,5,4,3,1] [6,5,4,2,3,1,4,3,5,4,2,6,5,4,3,1]