a-a a-b a-c aaa aab aac aad aah aan aas ab- aba abb abc abd abh abn abs ac- aca acb acc acd ach acn acs ad- ada adb adc add adh adn ads aha ahb ahc ahd ahh ahn ahs an- ana anb anc and anh ann ans as- asa asb asc asd ash asn ass baa bab bac bad bah ban bas bba bbb bbc bbd bbh bbn bbs bca bcb bcc bcd bch bcn bcs bda bdb bdc bdd bdh bds bha bhb bhc bhd bhh bhs bna bnb bnc bnd bnn bns bsa bsb bsc bsd bsh bsn bss c-- caa cab cac cad cah can cas cba cbb cbc cbd cbh cbn cbs cca ccb ccc ccd cch ccn ccs cda cdb cdc cdd cdh cdn cds ch- cha chb chc chd chh chn chs cn- cna cnb cnc cnd cnh cnn cns csa csb csc csd csh csn css daa dab dac dad dah dan das dba dbb dbc dbd dbh dbn dbs dca dcb dcc dcd dcn dcs dda ddb ddc ddd ddh ddn dds dh- dha dhb dhc dhd dhh dhs dna dnb dnc dnd dnh dnn dns dsa dsb dsc dsd dsh dsn dss haa hab hac had hah han has hba hbb hbc hbd hbh hbn hbs hca hcb hcc hcd hch hcn hcs hda hdb hdc hdd hdh hdn hds hha hhb hhc hhd hhh hhn hhs hna hnb hnc hnd hnh hnn hns hsa hsb hsc hsd hsh hsn hss naa nab nac nad nah nan nas nba nbb nbc nbd nbn nbs nca ncb ncc ncd nch ncn ncs nda ndb ndc ndd ndh ndn nds nha nhb nhc nhd nhh nhn nhs nna nnb nnc nnh nnn nns nsa nsb nsc nsd nsh nsn nss saa sab sac sad sah san sas sba sbb sbc sbd sbh sbn sbs sca scb scc scd sch scn scs sda sdb sdc sdd sdh sdn sds sh- sha shb shc shd shh shn shs sna snb snc snd snn sns ss- ssa ssb ssc ssd ssh ssn sss

-ana a-ha aaaa aaab aaac aaad aaah aaan aaas aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aacn aacs aada aadc aads aaha aahs aana aand aasa aasc aasd aass abaa abab abac abad aban abas abb- abba abbb abbs abca abcb abcc abcd abch abcn abcs abda abha abhs abs- absa absd abss acaa acab acac acad acan acas acba acca accc accd acch accs acda acdb acdc acds acha achh achs acsa acsc acsd acss adaa adab adac adad adah adan adas adba adbc adcc adcs adda addc addd addn adds adha adhd adhn adhs adna adns adsa adss ahab ahac ahad ahah ahas ahha ahhs ahsa ahss ana- anaa anab anac anad anah anan anas anba anbb anca ancc and- anda andh ands anha anhs anna annb anns ansa ansd asaa asab asac asad asah asan asas asba asc- asca ascb ascc asch asda asds asha ashs asnc assa assc assd assh assn asss baaa baad baah baan baas baba babb babs bac- baca bacc bach bacn bacs bada badb badd badh bads baha bahn bahs bana banc band banh bann bans basa basc bash bass bbad bbas bbbb bbbs bbch bbdd bbhs bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bchd bchs bcsa bcsc bcsn bcss bdbc bddc bddh bdhs bdna bdsd bhan bhca bhcc bhhs bnas bnhs bnss bsaa bsac bsas bsbd bscs bshs bsnd bsns bssc bssd c-cd caaa caab caac caah caan caas caba cabs cac- caca cacc cach cada cadc cadd cads caha cahn cahs cana canc cand canh cann cans casa casb casc casd cash cass cbac cbbc cbbs cbca cbcc cbcn cbcs cbdb cbdc cbdn cbds cbha cbhs cbna cbnd cbsa cbsc cbsn ccaa ccab ccac ccad ccas ccba ccbc ccbn ccca cccb cccc cccs ccdc ccdh ccdn ccds ccha cchs ccna ccnb ccnc ccns ccsa ccsd ccsn ccss cdaa cdac cdad cdba cdcs cdda cddb cdhs cdna cdnb cdnc cdss chaa chab chac chad chah chan chas chca chch chcs chha chhs chnb chnc chns chsc chsh cnaa cnac cnas cnbc cnda cndd cnhs cnna cnsa cnss csaa csab csac csas cscb cscc cscd csch cscs csda csdb csdn cshs cssa cssd d-na daab daad daan daas daba dabb dabs daca dacs dada dads daha dahn dahs dana dand dann dans dasa dasb dasc dasd dash dass dbas dbcc dbcs dbhs dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dchs dcns dcsc dcss dddd ddss dhaa dhad dhan dhsa dnaa dnab dnac dnad dnah dnan dnas dncs dnhs dnsa dnsc dsac dsba dsbc dscc dsch dscn dscs dsda dshs dssa dssc dssn haab haad haan haas haba habs hacs hada hadh haha hahn hahs hana hanc hand hann hans hasa hasc hasd hash hass hbbs hbcd hbds hbhs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hdca hdda hdhs hdss hhaa hhds hhhh hhhs hncs hndd hnhs hnna hsac hsad hsas hsbc hscc hscn hshs naaa naab naac naad naan naas naba nabc nabs naca nacc nacd nach nacs nada nadc nadh nads naha nahs nan- nana nanb nand nann nans nas- nasa nasb nasc nasd nash nass nbaa nbad nbas nbbc nbca nbcc nbcs nbhd nbhs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncda ncdc ncdn ncds ncha nchc nchd nchs ncna ncnc ncnd ncsa ncsc ncss ndaa ndas ndcc ndcs nddb ndhs ndna ndss nhcc nhhs nhnn nhsc nndb nnhs nnnn nnsa nnss nsaa nsac nsca nscc nscd nscs nsds nshs nsna nssa nssb nssc nsss sa-c saab saac saad saah saan saas saba sabb sabc sabs saca sacc sacd sacn sacs sada sadb sadc sadd sadh sads saha sahn sahs sana sand sann sans sasa sasc sasd sash sass sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbhc sbhs sbsa sbsd scaa scab scac scad scan scas scba sccc sccs scda scdc scds sch- scha schh