-ana a-ii a-un aaaa aaab aaac aaai aaan aaas aaba aabb aabc aabi aaca aacb aacc aaci aacn aacs aacu aaib aaic aaii aain aais aana aani aasa aasc aasi aass aasu aaus abaa abab abac abai aban abas abau abb- abba abbb abbi abbs abca abcb abcc abci abcn abcs abia abib abic abin abis abiu abnu abs- absa absi abss absu abua abun abus acaa acab acac acai acan acas acba acca accc acci accs accu aci- acia acic acin acis acsa acsc acsi acss acu- acus aiai aian aias aiba aibn aica aicc aics aiia aiib aiic aiin aina ainc aini ains ainu aisa aisb aisi aiui ana- anaa anab anac anai anan anas anau anba anbb anbi anbu anca ancc ania anib anic anin anis aniu anna annb anni anns ansa ansi ansu anua anub anui anun anus asaa asab asac asai asan asas asau asba asbu asc- asca ascb ascc asci asia asic asii asin asis asnc asni assa assc assi assn asss assu asub asui asun asus auaa auca auci auis auna ausa ausu ba-i baaa baan baas baba babb babi babs babu bac- baca bacc baci bacn bacs baia baib baic bain bais bana banc bani bann bans banu basa basc basi bass basu bau- bbas bbau bbbb bbbs bbci bbin bcaa bcas bcbc bcbs bcca bccc bcci bccs bcia bcis bcnu bcsa bcsc bcsn bcss bcuc bian bias biba bibb bibi bibs bica bicc bici bics biin biis bin- bina binc bini binn bins binu bis- bisa bisc biss bisu bnai bnas bnib bnin bnss bsaa bsac bsas bsci bscs bsic bsin bsns bssc buba bubb bubi bubs bubu buca bucc buci bucs bucu buic buin buis buiu buna bunb buni bunn buns bunu busa busc busi buss busu buus caaa caab caac caan caas caba cabi cabs cabu cac- caca cacc caci caia caib caic cain cais caiu cana canc cani cann cans casa casb casc casi cass casu cauc caus cbac cbbc cbbs cbca cbcc cbcn cbcs cbcu cbia cbna cbsa cbsc cbsi cbsn cbus ccaa ccab ccac ccai ccas ccba ccbc ccbn ccca cccb cccc ccci cccs cccu ccic ccii ccis ccna ccnb ccnc ccni ccns ccnu ccsa ccsi ccsn ccss ccuc ccus ciaa cian cias ciau ciba cibc cibi cica cicc cici cics cicu ciia ciii ciis cin- cina cinc cini cis- cisa cisc cisn ciss ciuc cius cnaa cnac cnas cnbc cnci cnib cnic cnna cnsa cnss csaa csab csac csas cscb cscc csci cscs csia csib csis cssa csua csus cuan cuau cub- cuba cubb cubi cubs cuca cucc cuci cucn cui- cuin cuis cuna cusa cusb cuss cusu iaaa iaac iaai iaas iaba iaca iacc iacs iacu iaia iain iais iana ians iasa iasc iasi ibac iban ibas ibca ibcs ibia ibis ibns ibsa ibsn ibss ibus icaa icab icac icai ican icas icbc icbs icca iccb iccc icci iccn iccs iccu icis icnb icnc icns icsa icsb icsc icsi icss icub icus iiac iias iica iiii iiis iisc iisi iisu iiuc inab inac inai inan inas inau inba inca incb inci incs inia inis inna inni inns innu insa insc inss insu inua inui inun inus is-a isac isai isan isas isba isbn isca iscc isci iscn iscs iscu isia isic isin isis isna issa issc issi isss issu isua isus iucc iuiu iuss n-ii naaa naab naac naai naan naas naba nabc nabi nabs nabu naca nacc naci nacs naia naib naic nain nais nan- nana nanb nani nann nans nanu nas- nasa nasb nasc nasi nass nasu naus nbaa nbas nbbc nbca nbcc nbci nbcs nbia nbic ncaa ncac ncba ncbc ncbi ncbs ncca nccc ncci nccn nccs nccu ncia ncis ncna ncnc ncsa ncsc ncsi ncss ncua niab niac nian nias niau nibi nibs nica nicc nici nics nicu niia niiu nina nini nins nisa nisi niss nisu nnnn nnsa nnss nsaa nsac nsai nsca nscc nscs nsic nsin nsis nsna nssa nssb nssc nsss nsub nuan nuba nubc nubi nubs nuca nuci nucs nucu nuin nuna nunc nunn nuns nusi nuss nusu s-ib s-ic s-ii sa-c saab saac saan saas saba sabb sabc sabi sabs sabu saca sacc saci sacn sacs sacu saia saic sain sais sana sani sann sans sanu sasa sasc sasi sass saua sauc saun saus sbaa sbac sbai sbas sbbs sbca sbcc sbcs sbia sbic sbsa sbsi sbus scaa scab scac scai scan scas scba scbi sccc sccs sci- scia scic scin scis scna scsa scsc scsi scsn scsu scua scub scun siaa siab siac siai sian sias siau siba sibc sibi sibs sibu sica sicc sici sics sicu sina sini sinn sins sinu sisa sisc sisi siss sisu siui sius snab snas snba snca sncc snia snib snns snub snus ssaa ssab ssac ssan ssas ssau ssbn ssca sscc ssci sscs ssin ssis ssns sssa sssb sssc sssi ssss suan suas sub- suba subb subi subs suc- succ suci sucs suin suis sun- suna sunb suni sunn suns sunu sus- susa susi suss susu suus uabc uaca uasa uaua ubac ubba ubbi ubic ubii ubis ucai ucan ucas ucbc ucca ucci ucin ucsa ucsb ucsc ucsu ucua uica unaa unac unai unan unas unau unca uncc unci uncs uni- unia unic unii unin unis unna unni unns uns- unsa unsc unus us-a usaa usac usan usas usba usbc usbs usca uscc uscs usia usin usis usna usnc usnu ussa ussb ussc usss ussu usua usui usun usus uuni uusi uuuu