a-ak aaaa aaab aaac aaad aaar aaas aaba aabb aabc aabd aaca aacb aacc aacd aack aacr aacs aacu aada aadc aads aadu aaka aaku aara aarc aard aars aaru aasa aasc aasd aass aasu aaus abaa abab abac abad abak abar abas abau abb- abba abbb abbr abbs abca abcb abcc abcd abcr abcs abda abdu abra abrc abrs abs- absa absd abss absu abua abud abuk abus acaa acab acac acad acar acas acba acca accc accd accs accu acda acdb acdc acds ackd acks acr- acra acrc acrr acrs acsa acsc acsd acss acu- acur acus adaa adab adac adad adak adar adas adba adbc adcc adcs adda addc addd addr adds addu adra adrs adsa adsr adss adua adub aduk adur akaa akar akas akca akka akku akr- akra aksa aksu akua arab arac arad arak arar aras arau arba arbs arc- arca arcs arda ardc ards ardu arka arks arr- arra arrc arrk arrr arrs arru ars- arsa arsc arsd arsk arsu arua arub arud asaa asab asac asad asak asar asas asau asba asbu asc- asca ascb ascc ascr asda asds aska askr asks asra asrc asrs asru assa assc assd assk assr asss assu asub asud asur asus auaa auca audc auks aur- aura aurd ausa ausd ausu baaa baad baak baar baas baba babb babr babs babu bac- baca bacc back bacs bada badb badd badr bads badu bak- baka bakr baks baku bar- bara barb barc bard bark barr bars baru basa basc bask bass basu bau- baud bauk baur bbad bbas bbau bbbb bbbs bbdd bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcds bcra bcrs bcru bcsa bcsc bcss bcuc bd-r bdbc bddc bdsd brab brac brad brak bras brau brca brcb brda brds brka brkb brrr brrs brsb brsr bruc brud brus bsaa bsac bsas bsbd bscs bsra bsrd bssc bssd buad buar buba bubb bubs bubu buca bucc buck bucs bucu buda budb budd buds budu buka bukk buku bur- bura burb burd burk burr burs buru busa busc busk buss busu buus c-cd caaa caab caac caas caba cabs cabu cac- caca cacc cack cacr cada cadc cadd cadr cads cadu caka cara carb carc card cark carr cars casa casb casc casd cask casr cass casu cauc cauk caus cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbcu cbdb cbdc cbds cbka cbkr cbrd cbsa cbsc cbus ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs cccu ccdc ccdr ccds ccra ccrc ccrs ccsa ccsd ccss ccuc ccus cd-r cdaa cdac cdad cdba cdcs cdda cddb cddr cdrs cdss ckac ckbc ckck ckcs ckdu ckrc ckrd cksa cksb crab crac crar cras crau crbc crbu crca crcc crcr crda crdc crkc crsa crss crub crud cruk crus csaa csab csac csak csar csas cscb cscc cscd cscr cscs csda csdb csdr cska csks csra csrc csrd csrs cssa cssd cssr csua csur csus cuau cub- cuba cubb cubs cuca cucc cuck cuda cuds cuk- cuka cura curb curd curr curs cusa cusb cusd cusk cuss cusu daab daad daar daas daau daba dabb dabs dabu daca dacs dada dads dadu daka daks daku dara darb darc dard dark darr dars daru dasa dasb dasc dasd dask dass daub daud dauk daur daus dbar dbas dbcc dbcs dbrs dbsa dbss dbus dcas dcbc dcca dccb dccc dccs dccu dcdb dcds dcra dcrk dcsc dcss dddd ddrc ddss ddub dkba dkdc draa drab drac drad drak drar dras drau drba drbc drca drda drra drrs drsa drua drub druk drus druu dsac dsba dsbc dscc dscr dscs dsda dsdr dsrc dsrr dssa dssc duaa duab duad duar duas dub- duba dubb dubc dubs dubu duca duck ducs duda dudd duds dudu duka duku dura durk duru dusa dusk duur kaaa kaab kaak kaar kaas kaba kabb kabc kabd kabr kabu kacb kacc kacd kacs kacu kad- kada kadd kadr kads kadu kaka kakc kakk kaks kaku kara karb kard kark karr kars karu kas- kasa kasb kasc kask kasr kass kasu kau- kaub kauc kaud kauk kaur kaus kbaa kbab kbac kbad kbak kbar kbas kbba kbbb kbbc kbbd kbbk kbbr kbbs kbbu kbca kbcb kbck kbcr kbcs kbcu kbdb kbdr kbds kbkb kbkk kbkr kbra kbrb kbrc kbrd kbrk kbru kbsa kbsb kbsk kbsr kbss kbsu kbua kbub kbuc kbud kbuk kbur kbus kbuu kcaa kcab kcac kcad kcar kcas kcau kcba kcbc kcbd kcbk kcbr kcbs kcbu kcca kccb kccc kccd kcck kccr kccu kcda kcdc kcdd kcdr kcds kcdu kckc kckk kckr kcrc kcrr kcrs kcru kcsa kcsb kcsc kcsd kcsr kcss kcsu kcua kcub kcuk kdaa kdab kdac kdad kdak kdar kdbb kdbr kdbs kdca kdcc kdcd kdcr kddb kddc kddd kddk kddr kdka kdkb kdkd kdkk kdkr kdrb kdrs kdsc kdsd kdsk kdsr kdss kdsu kdub kduc kdur kdus kkaa kkac kkar kkba kkbb kkbd kkbr kkbs kkcb kkcd kkck kkcr kkcs kkda kkdc kkdd kkkk kkrb kkrc kkrk kkrr kkrs kksa kksd kksr kkss kksu kkua kkus kkuu krab krac krad krak krar kras krba krbb krbd krbk krbr krca krcb krcc krcd krcs krcu krda krdc krdd krdr krds krdu krka krkc krkd krkk krkr krks krku krrb krrc krrk krrr krrs krsa krsc krsd krsk krsr krss krsu krua kruc kruk krur ksab ksac ksak ksar ksas ksau ksba ksbc ksbr ksbs ksca kscb ksck kscr kscs kscu ksdc ksdk ksdr ksds kska kskb kskd kskk kskr ksks ksku ksra ksrb ksrr ksrs kssa kssr ksss kssu ksua ksub ksud ksuu kuac kuar kuau kuba kubb kubc kubd kubr kubs kubu kuca kucb kucc kucd kucr kuda kudd kudu kuka kukk kuks kuku kura kurb kurd kurk kurr kurs kuru kusa kusb kusc kusd kusu kuub kuuk kuur kuuu raab raad raak raas raba rabb rabk rabs rabu rac- raca racc rack racs racu rada radc radd radr rads radu raka rakk raku rara rarb rark rars rasa rasc rasd rask rass rasu raua