-ana a-ha aaaa aaab aaac aaah aaan aaas aaba aabb aabc aabh aaca aacb aacc aach aacn aacs aaha aahs aana aasa aasc aass abaa abab abac aban abas abb- abba abbb abbs abca abcb abcc abch abcn abcs abha abhs abs- absa abss acaa acab acac acan acas acba acca accc acch accs acha achh achs acsa acsc acss ahab ahac ahah ahas ahha ahhs ahsa ahss ana- anaa anab anac anah anan anas anba anbb anca ancc anha anhs anna annb anns ansa asaa asab asac asah asan asas asba asc- asca ascb ascc asch asha ashs asnc assa assc assh assn asss baaa baah baan baas baba babb babs bac- baca bacc bach bacn bacs baha bahn bahs bana banc banh bann bans basa basc bash bass bbas bbbb bbbs bbch bbhs bcaa bcas bcbc bcbs bcca bccc bccs bchs bcsa bcsc bcsn bcss bhan bhca bhcc bhhs bnas bnhs bnss bsaa bsac bsas bscs bshs bsns bssc caaa caab caac caah caan caas caba cabs cac- caca cacc cach caha cahn cahs cana canc canh cann cans casa casb casc cash cass cbac cbbc cbbs cbca cbcc cbcn cbcs cbha cbhs cbna cbsa cbsc cbsn ccaa ccab ccac ccas ccba ccbc ccbn ccca cccb cccc cccs ccha cchs ccna ccnb ccnc ccns ccsa ccsn ccss chaa chab chac chah chan chas chca chch chcs chha chhs chnb chnc chns chsc chsh cnaa cnac cnas cnbc cnhs cnna cnsa cnss csaa csab csac csas cscb cscc csch cscs cshs cssa haab haan haas haba habs hacs haha hahn hahs hana hanc hann hans hasa hasc hash hass hbbs hbhs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hhaa hhhh hhhs hncs hnhs hnna hsac hsas hsbc hscc hscn hshs naaa naab naac naan naas naba nabc nabs naca nacc nach nacs naha nahs nan- nana nanb nann nans nas- nasa nasb nasc nash nass nbaa nbas nbbc nbca nbcc nbcs nbhs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncha nchc nchs ncna ncnc ncsa ncsc ncss nhcc nhhs nhnn nhsc nnhs nnnn nnsa nnss nsaa nsac nsca nscc nscs nshs nsna nssa nssb nssc nsss sa-c saab saac saah saan saas saba sabb sabc sabs saca sacc sacn sacs saha sahn sahs sana sann sans sasa sasc sash sass sbaa sbac sbas sbbs sbca sbcc sbcs sbhc sbhs sbsa scaa scab scac scan scas scba sccc sccs sch- scha schh schs scna scsa scsc scsh scsn shab shac shah shan shas shbs shca shcc shha shhh shhs shsc snab snas snba snca sncc snhs snns ssaa ssab ssac ssan ssas ssbn ssca sscc sscs sshs ssns sssa sssb sssc sssh ssss