[1,2,11,12,21,22,31,32,111,112,121,122,141,142, 152,161,162,172,182,211,212,221,222,241,242,251, 261,262,271,281,311,312,321,322,331,332,910,920, 1111,1112,1121,1122,1141,1142,1151,1152,1161,1162, 1171,1172,1181,1182]