a-do a-ha a-ii aaaa aaab aaac aaad aaah aaai aaba aabb aabc aabd aabh aabi aaca aacb aacc aacd aach aaci aaco aada aadc aadi aaha aaib aaic aaii aaoo abaa abab abac abad abai abb- abba abbb abbi abbo abca abcb abcc abcd abch abci abda abdi abdo abha abhi abho abia abib abic abid aboa abob abod aboh aboo acaa acab acac acad acai acba acca accc accd acch acci acco acda acdb acdc acdi acha achh achi acho aci- acia acic acid acoa acod acoh adaa adab adac adad adah adai adao adba adbc adbi adcc adci adda addc addd addi addo adha adhd adhi adho adia adib adic adio adob adoc adod adoo ahab ahac ahad ahah ahai ahdi ahha ahio ahoa ahod aiai aiba aibo aica aicc aicd aich aida aidb aidc aidi aiha aiho aiia aiib aiic aiid aioc aioi aoah aoba aoca aodh ba-i baaa baad baah baba babb babi babo bac- baca bacc bach baci baco bada badb badd badh badi bado baha bahi baho baia baib baic baid baio baoh bbad bbbb bbch bbci bbdd bbdo bcaa bcbc bcca bccc bcci bcda bchd bcia bdbc bddc bddh bdii bhai bhao bhca bhcc bhoi biad biao biba bibb bibi bibo bica bicc bich bici bico bida bidi bido biha bihi bio- bioc bioi boab boac boad boai boba bobb bobi bobo boca boch boco boda bodb bodh bodi bodo boha bohd boho boi- boid boii boob booc bood booh c-bo c-cd caaa caab caac caah caba cabi cabo cac- caca cacc cach caci caco cada cadc cadd cadi cado caha caia caib caic caid caio caod caoi cbac cbbc cbca cbcc cbdb cbdc cbdi cbdo cbha cbia cbid ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci ccdc ccdh ccdi ccha ccic ccid ccii ccob ccoc ccod cdaa cdac cdad cdai cdba cdda cddb cdic cdii cdio chaa chab chac chad chah chai chao chca chch chci chdi chha chia chib chic chid chih choc chod choh choi choo ciaa ciao ciba cibc cibi cibo cica cicc cich cici cico cida cidc cidi ciia ciid ciii ciob coad coai coba cobb cobh cobi cobo coca coch coco coda codd codi coha coho coia coob cood cooh d-bo daab daad daba dabb dabo daca daci dada dadi dado daha dahi daia daid daio dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcio dddd ddoc dhaa dhad dhai dhao dhod dia- diab diac diad diao diba dibb dibo dica dich dici dico dida didi dido diii dioc doab doba dobb dobi doca doch doci doco dod- doda dodd dodi dodo doha dohc doid doob dood h-ii haab haad haba habi habo haco hada hadh hadi haha haho haid hbcd hbic hbio hboc hcbc hcca hccb hccc hcch hchi hdca hdci hdda hdoc hdod hhaa hhhh hi-c hiaa hiab hiba hibi hicc hich hico hida hidi hihc hihi hiho hiob hioc hoac hoad hoai hoba hobo hoca hoch hoda hodh hodi hoha hoho hoid hood iaaa iaac iaai iaba iaca iacc iadb iadc iahc iaia ibac ibad ibca ibdo ibia ibid icaa icab icac icad icai icao icbc icbd icca iccb iccc icci icco icdc icdd ichc ichd ichi icho icoc icod idad idah idca idda iddo idha idia idic idid idio idoc ihab ihad ihba ihcc ihob iiac iica iicd iida iiii iiio iioi iioo ioba iobi ioci iod- ioda iodd iodo ioii ioio iooi iooo oaic obad obai obba obbo obia obid oboi ocab ocac ocad ocbc occa occc occi ocha ochi odac odah odai odbo odci odda oddd oddi odia odic odio odoh odoo ohad ohai ohba ohcc ohhi ohho ohia ohid ohio ohob ohoh oiba oici oido oiii ooaa ooba oobi ooda oodi ooha ooho ooia ooid oooh oooo