9, 21, 33, 51, 63, 87, 93, 111, 321, 411, 543, 633, 753, 771, 831, 843, 921, 933, 951, 993, 4443, 5331, 5433, 5541, 6333, 6411, 6621, 6663, 7311, 7431, 7653, 7773, 8331, 8511, 8553, 8661, 8751, 8871, 9111, 9411, 9543, 9651, 9663, 9753, 9771, 9777, 9921, 9987, 9993, 43221, 43311, 44211, 53211, 55443, 55551, 63321, 64221, 64443, 65211, 65553, 66111, 66333, 66441, 73221, 75111, 75333, 75441, 76611, 77541, 82221, 83211, 84333, 85431, 85551, 86421, 86511, 87411, 87441, 87621, 87663, 87753, 88311, 88611, 88743, 88761, 88833, 88887, 94431, 94443, 95541, 97521, 97611, 97761, 98661, 98733, 98751, 98871, 99111, 99321, 99543, 99633, 99741, 99861, 99933, 99951, 99987, 99993, 432111, 433221, 444441, 554331, 555411, 555531, 621111, 644421, 644433, 654321, 654333, 654411, 655311, 664431, 665211, 665421, 666321, 666411, 744411, 754311, 754431, 755211, 763221, 763311, 764331, 765321, 765411, 765543, 766533, 766551, 766653, 772221, 774321, 775221, 775311, 776211, 776541, 776661, 777531, 777633, 853221, 854211, 854331, 854421, 864411, 865443, 866553, 866631, 872211, 873111, 873321, 874311, 874443, 876111, 876441, 876543, 877431, 877551, 877731, 885111, 885333, 886551, 887331, 887511, 887541, 887631, 888411, 888663, 888711, 888753, 888861, 933333, 943221, 944331, 944421, 953331, 954321, 954411, 955221, 963111, 965541, 965553, 966111, 966333, 973311, 974433, 975543, 976431, 976551, 976611, 977331, 977421, 977631, 977763, 982221, 983211, 984111, 985443, 985533, 986331, 986511, 986541, 987333, 987531, 987621, 987771, 988653, 988761, 988773, 988851, 988881, 988887, 995331, 996441, 996621, 996663, 997431, 998511, 998553, 998643, 998661, 998763, 998841, 998853, 999321, 999861, 999993, 2222211, 4221111, 4322211, 4422111, 4444431, 5421111, 5433321, 5444211, 5444331, 5444421, 5543211, 5543331, 5544321, 5554221, 5555553, 6111111, 6321111, 6333321, 6433221, 6433311, 6442221, 6443211, 6533211, 6553221, 6554433, 6555111, 6555543, 6654111, 6663333, 6665511, 6665541, 6666441, 6666531.