[1,2,11,21,12,22,111,211,121,221,112,212,122,222, 1111,2111,1211,2211,1121,2121,1221,2221,1112,2112, 1212,2212,1122,2122,1222,2222,11111,21111,12111, 22111,11211,21211,12211,22211,11121,21121,12121, 22121]