a-a a-b a-c aaa aab aac aad aan aas aau ab- aba abb abc abd abn abs abu ac- aca acb acc acd acn acs acu ad- ada adb adc add adn ads adu an- ana anb anc and ann ans anu as- asa asb asc asd asn ass asu au- aua aub auc aud aun aus b-u baa bab bac bad ban bas bau bba bbb bbc bbd bbn bbs bbu bca bcb bcc bcd bcn bcs bcu bda bdb bdc bdd bds bdu bna bnb bnc bnd bnn bns bnu bsa bsb bsc bsd bsn bss bsu bua bub buc bud bun bus buu c-- caa cab cac cad can cas cau cba cbb cbc cbd cbn cbs cbu cca ccb ccc ccd ccn ccs ccu cda cdb cdc cdd cdn cds cdu cn- cna cnb cnc cnd cnn cns cnu csa csb csc csd csn css csu cua cub cuc cud cun cus cuu daa dab dac dad dan das dau dba dbb dbc dbd dbn dbs dbu dca dcb dcc dcd dcn dcs dcu dda ddb ddc ddd ddn dds ddu dna dnb dnc dnd dnn dns dsa dsb dsc dsd dsn dss dsu dua dub duc dud dun dus naa nab nac nad nan nas nau nba nbb nbc nbd nbn nbs nbu nca ncb ncc ncd ncn ncs ncu nda ndb ndc ndd ndn nds ndu nna nnb nnc nnn nns nnu nsa nsb nsc nsd nsn nss nsu nua nub nuc nud nun nus nuu saa sab sac sad san sas sau sba sbb sbc sbd sbn sbs sbu sca scb scc scd scn scs scu sda sdb sdc sdd sdn sds sdu sna snb snc snd snn sns snu ss- ssa ssb ssc ssd ssn sss ssu sua sub suc sud sun sus suu ua- uaa uab uac uad uan uas uau uba ubb ubc ubn ubs ubu uca ucb ucc ucd ucn ucs ucu uda udb udc udd udn uds udu un- una unb unc und unn uns unu usa usb usc usd usn uss usu uua uuc uun uus uuu

-ana a-un aaaa aaab aaac aaad aaan aaas aaba aabb aabc aabd aaca aacb aacc aacd aacn aacs aacu aada aadc aads aadu aana aand aasa aasc aasd aass aasu aaus abaa abab abac abad aban abas abau abb- abba abbb abbs abca abcb abcc abcd abcn abcs abda abdu abnu abs- absa absd abss absu abua abud abun abus acaa acab acac acad acan acas acba acca accc accd accs accu acda acdb acdc acds acsa acsc acsd acss acu- acus adaa adab adac adad adan adas adba adbc adcc adcs adda addc addd addn adds addu adna adns adsa adss adua adub adun ana- anaa anab anac anad anan anas anau anba anbb anbu anca ancc and- anda ands anna annb anns ansa ansd ansu anua anub anun anus asaa asab asac asad asan asas asau asba asbu asc- asca ascb ascc asda asds asnc assa assc assd assn asss assu asub asud asun asus auaa auca audc auna ausa ausd ausu baaa baad baan baas baba babb babs babu bac- baca bacc bacn bacs bada badb badd bads badu bana banc band bann bans banu basa basc bass basu bau- baud bbad bbas bbau bbbb bbbs bbdd bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bcnu bcsa bcsc bcsn bcss bcuc bdbc bddc bdna bdsd bnas bnss bsaa bsac bsas bsbd bscs bsnd bsns bssc bssd buad buba bubb bubs bubu buca bucc bucs bucu buda budb budd buds budu buna bunb bund bunn buns bunu busa busc buss busu buus c-cd caaa caab caac caan caas caba cabs cabu cac- caca cacc cada cadc cadd cads cadu cana canc cand cann cans casa casb casc casd cass casu cauc caus cbac cbbc cbbs cbca cbcc cbcn cbcs cbcu cbdb cbdc cbdn cbds cbna cbnd cbsa cbsc cbsn cbus ccaa ccab ccac ccad ccas ccba ccbc ccbn ccca cccb cccc cccs cccu ccdc ccdn ccds ccna ccnb ccnc ccns ccnu ccsa ccsd ccsn ccss ccuc ccus cdaa cdac cdad cdba cdcs cdda cddb cdna cdnb cdnc cdss cnaa cnac cnas cnbc cnda cndd cnna cnsa cnss csaa csab csac csas cscb cscc cscd cscs csda csdb csdn cssa cssd csua csus cuan cuau cub- cuba cubb cubs cuca cucc cucn cuda cuds cuna cund cusa cusb cusd cuss cusu d-na daab daad daan daas daau daba dabb dabs dabu daca dacs dada dads dadu dana dand dann dans danu dasa dasb dasc dasd dass daub daud daun daus dbas dbcc dbcs dbsa dbss dbus dcas dcbc dcca dccb dccc dccs dccu dcdb dcds dcns dcsc dcss dddd ddss ddub dnaa dnab dnac dnad dnan dnas dncs dnsa dnsc dnus dsac dsba dsbc dscc dscn dscs dsda dssa dssc dssn duaa duab duad duan duas dub- duba dubb dubc dubs dubu duca ducs duda dudd duds dudu duna dunc dunn duns dusa naaa naab naac naad naan naas naba nabc nabs nabu naca nacc nacd nacs nada nadc nads nadu nan- nana nanb nand nann nans nanu nas- nasa nasb nasc nasd nass nasu naus nbaa nbad nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs nccu ncda ncdc ncdn ncds ncdu ncna ncnc ncnd ncsa ncsc ncss ncua ndaa ndas ndau ndcc ndcs nddb ndna ndss nndb nnnn nnsa nnss nsaa nsac nsca nscc nscd nscs nsds nsna nssa nssb nssc nsss nsub nuan nuba nubc nubs nuca nucs nucu nuda nudc nudd nuna nunc nunn nuns nuss nusu sa-c saab saac saad saan saas saba sabb sabc sabs sabu saca sacc sacd sacn sacs sacu sada sadb sadc sadd sads sadu sana sand sann sans sanu sasa sasc sasd sass saua sauc saud saun saus sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbsa sbsd sbus scaa scab scac scad scan scas scba sccc sccs scda scdc scds scna scnd scsa scsc scsd scsn scsu scua scub scud scun sdau