-ana a-ii aaaa aaab aaac aaai aaan aaba aabb aabc aabi aaca aacb aacc aaci aacn aaco aaib aaic aaii aain aana aani aaon aaoo abaa abab abac abai aban abb- abba abbb abbi abbo abca abcb abcc abci abcn abia abib abic abin aboa abob abon aboo acaa acab acac acai acan acba acca accc acci acco aci- acia acic acin acoa acon aiai aian aiba aibn aibo aica aicc aiia aiib aiic aiin aina ainc aini aino aioc aioi aion ana- anaa anab anac anai anan anao anba anbb anbi anbo anca ancc anco ania anib anic anin anio anna annb anni anno ano- anoa anon aoba aoca aonb aono ba-i baaa baan baba babb babi babo bac- baca bacc baci bacn baco baia baib baic bain baio bana banc bani bann bano baon bbbb bbci bbin bcaa bcbc bcca bccc bcci bcia bian biao biba bibb bibi bibo bica bicc bici bico biin bin- bina binc bini binn bino bio- bioc bioi bion bnai bnib bnin bnoc boab boac boai boan boba bobb bobi bobo boca boco boi- boii boin bona bonc boni bonn bono boob booc boon c-bo caaa caab caac caan caba cabi cabo cac- caca cacc caci caco caia caib caic cain caio cana canc cani cann cano caoi cbac cbbc cbca cbcc cbcn cbia cbna ccaa ccab ccac ccai ccba ccbc ccbn ccca cccb cccc ccci ccic ccii ccna ccnb ccnc ccni ccob ccoc ciaa cian ciao ciba cibc cibi cibo cica cicc cici cico ciia ciii cin- cina cinc cini cino ciob cion cnaa cnac cnbc cnci cnco cnib cnic cnna coai coan coba cobb cobi cobo coca coco coia coin con- cona conc coni conn cono coob coon i-no iaaa iaac iaai iaba iaca iacc iaia iain iana ibac iban ibca ibia ibon icaa icab icac icai ican icao icbc icca iccb iccc icci iccn icco icnb icnc icoc icon iiac iica iiii iiio iino iioi iioo inab inac inai inan inao inba inbo inca incb inci inco inia inna inni inno ino- inoi inon ioan ioba iobi ioci ioii ioio iona ioni ionn iono iooi iooo n-ii naaa naab naac naai naan naba nabc nabi nabo naca nacc naci naco naia naib naic nain naio nan- nana nanb nani nann nano naoc naoi nbaa nbbc nbbo nbca nbcc nbci nbco nbia nbic ncaa ncac ncba ncbc ncbi ncca nccc ncci nccn ncia ncna ncnc ncoa ncoc niab niac nian nibi nibo nica nicc nici nico niia nina nini nino nion nioo nnnn noaa noac noba nobc nobi nobo noci noco noia noib noin noio non- nona noni nonn nono noo- noob noon nooo oaic obai oban obba obbo obia obin oboi obon ocab ocac ocan ocbc occa occc occi occn ocin ocna ocon oiba oici oiii oion onab onan onc- onca onco onia onic onna onni onno onon ooaa ooba oobi ooia oona oooo