a-a a-b a-c aaa aab aac aan aas aau ab- aba abb abc abn abs abu ac- aca acb acc acn acs acu an- ana anb anc ann ans anu as- asa asb asc asn ass asu au- aua aub auc aun aus b-u baa bab bac ban bas bau bba bbb bbc bbn bbs bbu bca bcb bcc bcn bcs bcu bna bnb bnc bnn bns bnu bsa bsb bsc bsn bss bsu bua bub buc bun bus buu c-- caa cab cac can cas cau cba cbb cbc cbn cbs cbu cca ccb ccc ccn ccs ccu cn- cna cnb cnc cnn cns cnu csa csb csc csn css csu cua cub cuc cun cus cuu naa nab nac nan nas nau nba nbb nbc nbn nbs nbu nca ncb ncc ncn ncs ncu nna nnb nnc nnn nns nnu nsa nsb nsc nsn nss nsu nua nub nuc nun nus nuu saa sab sac san sas sau sba sbb sbc sbn sbs sbu sca scb scc scn scs scu sna snb snc snn sns snu ss- ssa ssb ssc ssn sss ssu sua sub suc sun sus suu ua- uaa uab uac uan uas uau uba ubb ubc ubn ubs ubu uca ucb ucc ucn ucs ucu un- una unb unc unn uns unu usa usb usc usn uss usu uua uuc uun uus uuu

-ana a-un aaaa aaab aaac aaan aaas aaba aabb aabc aaca aacb aacc aacn aacs aacu aana aasa aasc aass aasu aaus abaa abab abac aban abas abau abb- abba abbb abbs abca abcb abcc abcn abcs abnu abs- absa abss absu abua abun abus acaa acab acac acan acas acba acca accc accs accu acsa acsc acss acu- acus ana- anaa anab anac anan anas anau anba anbb anbu anca ancc anna annb anns ansa ansu anua anub anun anus asaa asab asac asan asas asau asba asbu asc- asca ascb ascc asnc assa assc assn asss assu asub asun asus auaa auca auna ausa ausu baaa baan baas baba babb babs babu bac- baca bacc bacn bacs bana banc bann bans banu basa basc bass basu bau- bbas bbau bbbb bbbs bcaa bcas bcbc bcbs bcca bccc bccs bcnu bcsa bcsc bcsn bcss bcuc bnas bnss bsaa bsac bsas bscs bsns bssc buba bubb bubs bubu buca bucc bucs bucu buna bunb bunn buns bunu busa busc buss busu buus caaa caab caac caan caas caba cabs cabu cac- caca cacc cana canc cann cans casa casb casc cass casu cauc caus cbac cbbc cbbs cbca cbcc cbcn cbcs cbcu cbna cbsa cbsc cbsn cbus ccaa ccab ccac ccas ccba ccbc ccbn ccca cccb cccc cccs cccu ccna ccnb ccnc ccns ccnu ccsa ccsn ccss ccuc ccus cnaa cnac cnas cnbc cnna cnsa cnss csaa csab csac csas cscb cscc cscs cssa csua csus cuan cuau cub- cuba cubb cubs cuca cucc cucn cuna cusa cusb cuss cusu naaa naab naac naan naas naba nabc nabs nabu naca nacc nacs nan- nana nanb nann nans nanu nas- nasa nasb nasc nass nasu naus nbaa nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs nccu ncna ncnc ncsa ncsc ncss ncua nnnn nnsa nnss nsaa nsac nsca nscc nscs nsna nssa nssb nssc nsss nsub nuan nuba nubc nubs nuca nucs nucu nuna nunc nunn nuns nuss nusu sa-c saab saac saan saas saba sabb sabc sabs sabu saca sacc sacn sacs sacu sana sann sans sanu sasa sasc sass saua sauc saun saus sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbus scaa scab scac scan scas scba sccc sccs scna scsa scsc scsn scsu scua scub scun snab snas snba snca sncc snns snub snus ssaa ssab ssac ssan ssas ssau ssbn ssca sscc sscs ssns sssa sssb sssc ssss suan suas sub- suba subb subs suc- succ sucs sun- suna sunb sunn suns sunu sus- susa suss susu suus uabc uaca uasa uaua ubac ubba ucan ucas ucbc ucca ucsa ucsb ucsc ucsu ucua unaa unac unan unas unau unca uncc uncs unna unns uns- unsa unsc unus us-a usaa usac usan usas usba usbc usbs usca uscc uscs usna usnc usnu ussa ussb ussc usss ussu usua usun usus uuuu

-aaa- a-sun aaaas aaasa aaass aabaa aabba aacbc aacsa aacsb aacss aacus abaab ababa ababs ababu abaca abacs abana abanc abann abasa abass abbac abban abbas abcan abcas abccc abnub abuna acaca acacb acana acass acaua accas accub accus acuba acusa anaba anana anasa anass anaua anaun anban ancus annan annas annua annus ansac ansan ansca ansun asaba asabc asana asanu asasa asbca ascan ascus asnan asnas assab assac assan assas assns asubs asuna auass aubas aubun aucan aucas aucun aunac aunc- aunus aussa b-cas baban babas babau babbs babns babus bacab bacas bacca bacu bacun banan banas banau banba banca bancs banna banns bannu bansa banus basab basan basca basna bassa bassu bbuss bsaba bubas bubba bucan bucca bucsa bucsu bunab bunac bunan bunau bunna bunun bunus busaa busan busca bussa bussu busua busuu c-a-c c-bus ca-ca caaan caaba caans caban cabas cabus cacas cacau cacu cacus canan canas canna cansu canuc canun canus casas casca casus cauac cauas cauca caun- cauna causa ccass ccccc cnnnn csaba cuaba cuban cubas cubub cunac cunan cunas n-sub naans naban nabas nabau nabba nabua nacaa nacac nacba naccc nacna nanan nanas nanbu nann- nanna nanus nasaa nasan nasba nasca nassa nasua nasus nbcsn ncaas nsaba nsasa nu-nu nuabu nuans nubas nubus nucca nunan nunca nunna nunns nunun nusus s-bus saaba saabs saana saans saasa saasu sabac saban sabas sabau sabca sabsa sabun sabus sacan sacas sacc- sacca sacsa sanaa sanas sanba sanna sanns sansa sasan sasca sasna sassa sauba sauca sauna sauns scabs scana scans scanu sccbc scsaa scuba scusa snabs snasa sncac sncan snub- snuba snubs snuss sscac sssss suana suasa subba subbu subss sucua sunab sunan sunas sunbs sunna susac susan susun susus suuns ubacs unass unaus unban uncas uncus unnau unnun