a-ii aaaa aaab aaac aaai aaba aabb aabc aabi aaca aacb aacc aaci aacu aaib aaic aaii abaa abab abac abai abaj abau abb- abba abbb abbi abca abcb abcc abci abia abib abic abiu abua acaa acab acac acai acba acca accc acci accu aci- acia acic acu- aiai aiba aica aicc aiia aiib aiic aija aiui ajab ajac ajba auaa auca auci auja ba-i baaa baba babb babi babu bac- baca bacc baci baia baib baic baja baji baju bau- bbau bbbb bbci bcaa bcbc bcca bccc bcci bcia bcuc biaj biba bibb bibi bica bicc bici bija biji biju bjcc buba bubb bubi bubu buca bucc buci bucu buic buiu buja buji buju caaa caab caac caba cabi cabu cac- caca cacc caci caia caib caic caiu caja caji caju cauc cbac cbbc cbca cbcc cbcu cbia ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci cccu ccic ccii ccuc ciaa ciau ciba cibc cibi cica cicc cici cicu ciia ciii ciuc cjbc cjca cjcb cjcj cjic cuau cub- cuba cubb cubi cuca cucc cuci cui- cuju iaaa iaac iaai iaba iaca iacc iacu iaia ibac ibca ibia icaa icab icac icai icbc icca iccb iccc icci iccu icub iiac iica iiii iiuc ijji ijui iucc iuiu jaba jabi jaca jacc jaci jacu jaja jaji jaju jbaa jcbc jccc jcci jibb jibi jiji jiju jjcc juab juba jubu juca jucu juia juja juju uabc uaca uaua ubac ubba ubbi ubic ubii ubja ucai ucbc ucca ucci ucua uica uuuu