[1,2,11,3,21,4,111,22,31,5,211,6,41,32,1111,7,221, 8,311,42,51,9,2111,33,61,222,411,10,321,11,11111, 52,71,43,2211,12,81,62,3111,13,421,14,511,322,91, 15,21111,44,331,72,611,16,2221,53,4111,82,101,17, 3211,18,111]