-ana a-ii a-un aaaa aaab aaac aaai aaan aaba aabb aabc aabi aaca aacb aacc aaci aacn aacu aaib aaic aaii aain aana aani abaa abab abac abai aban abau abb- abba abbb abbi abca abcb abcc abci abcn abia abib abic abin abiu abnu abua abun acaa acab acac acai acan acba acca accc acci accu aci- acia acic acin acu- aiai aian aiba aibn aica aicc aiia aiib aiic aiin aina ainc aini ainu aiui ana- anaa anab anac anai anan anau anba anbb anbi anbu anca ancc ania anib anic anin aniu anna annb anni anua anub anui anun auaa auca auci auna ba-i baaa baan baba babb babi babu bac- baca bacc baci bacn baia baib baic bain bana banc bani bann banu bau- bbau bbbb bbci bbin bcaa bcbc bcca bccc bcci bcia bcnu bcuc bian biba bibb bibi bica bicc bici biin bin- bina binc bini binn binu bnai bnib bnin buba bubb bubi bubu buca bucc buci bucu buic buin buiu buna bunb buni bunn bunu caaa caab caac caan caba cabi cabu cac- caca cacc caci caia caib caic cain caiu cana canc cani cann cauc cbac cbbc cbca cbcc cbcn cbcu cbia cbna ccaa ccab ccac ccai ccba ccbc ccbn ccca cccb cccc ccci cccu ccic ccii ccna ccnb ccnc ccni ccnu ccuc ciaa cian ciau ciba cibc cibi cica cicc cici cicu ciia ciii cin- cina cinc cini ciuc cnaa cnac cnbc cnci cnib cnic cnna cuan cuau cub- cuba cubb cubi cuca cucc cuci cucn cui- cuin cuna iaaa iaac iaai iaba iaca iacc iacu iaia iain iana ibac iban ibca ibia icaa icab icac icai ican icbc icca iccb iccc icci iccn iccu icnb icnc icub iiac iica iiii iiuc inab inac inai inan inau inba inca incb inci inia inna inni innu inua inui inun iucc iuiu n-ii naaa naab naac naai naan naba nabc nabi nabu naca nacc naci naia naib naic nain nan- nana nanb nani nann nanu nbaa nbbc nbca nbcc nbci nbia nbic ncaa ncac ncba ncbc ncbi ncca nccc ncci nccn nccu ncia ncna ncnc ncua niab niac nian niau nibi nica nicc nici nicu niia niiu nina nini nnnn nuan nuba nubc nubi nuca nuci nucu nuin nuna nunc nunn uabc uaca uaua ubac ubba ubbi ubic ubii ucai ucan ucbc ucca ucci ucin ucua uica unaa unac unai unan unau unca uncc unci uni- unia unic unii unin unna unni uuni uuuu