[1,2,21,22,3,31,32,321,322,33,331,332,4,41,42,421, 422,43,431,432,4321,4322,433,4331,4332,44,441,442, 4421,4422,443,4431,4432,5,51,52,521,522,53,531, 532,5321,5322,533,5331,5332,54,541,542,5421,5422, 543,5431,5432]