a-ha a-ii aaaa aaab aaac aaad aaah aaai aaba aabb aabc aabd aabh aabi aaca aacb aacc aacd aach aaci aacu aada aadc aadi aadu aaha aaib aaic aaii abaa abab abac abad abai abau abb- abba abbb abbi abca abcb abcc abcd abch abci abda abdi abdu abha abhi abia abib abic abid abiu abua abud acaa acab acac acad acai acba acca accc accd acch acci accu acda acdb acdc acdi acha achh achi achu aci- acia acic acid acu- adaa adab adac adad adah adai adba adbc adbi adcc adci adda addc addd addi addu adha adhd adhi adhu adia adib adic adua adub ahab ahac ahad ahah ahai ahau ahdi ahha ahua aiai aiba aica aicc aicd aich aida aidb aidc aidi aidu aiha aiia aiib aiic aiid aiud aiui auaa auca auch auci audc audh audi ba-i baaa baad baah baba babb babi babu bac- baca bacc bach baci bada badb badd badh badi badu baha bahi bahu baia baib baic baid bau- baud bbad bbau bbbb bbch bbci bbdd bcaa bcbc bcca bccc bcci bcda bchd bcia bcuc bdbc bddc bddh bdii bhai bhca bhcc bhuu biad biba bibb bibi bica bicc bich bici bida bidi bidu biha bihi bihu buad buba bubb bubi bubu buca bucc buch buci bucu buda budb budd budi budu buha buhi buic buid buiu c-cd caaa caab caac caah caba cabi cabu cac- caca cacc cach caci cada cadc cadd cadi cadu caha caia caib caic caid caiu cauc cbac cbbc cbca cbcc cbcu cbdb cbdc cbdi cbha cbia cbid ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci cccu ccdc ccdh ccdi ccha ccic ccid ccii ccuc cdaa cdac cdad cdai cdba cdda cddb cdic cdii chaa chab chac chad chah chai chau chca chch chci chdi chha chia chib chic chid chih chiu chua chub chud chui ciaa ciau ciba cibc cibi cica cicc cich cici cicu cida cidc cidi ciia ciid ciii ciuc cuau cub- cuba cubb cubi cuca cucc cuci cuda cudi cui- daab daad daau daba dabb dabu daca daci dada dadi dadu daha dahi dahu daia daid daub daud dbcc dcbc dcca dccb dccc dcci dccu dcdb dcia dcii dddd ddub dhaa dhad dhai dhau dia- diab diac diad diba dibb dica dich dici dida didi didu dihu diii duaa duab duad duah dub- duba dubb dubc dubh dubu duca duch duda dudd dudu duha duhu duid h-ii haab haad haba habi habu hada hadh hadi hadu haha haid hau- haud hbcd hbic hcbc hcca hccb hccc hcch hchi hdca hdci hdda hhaa hhhh hi-c hiaa hiab hiba hibi hibu hicc hich hida hidi hihc hihi hiiu huac huah huba hubb hubi huch hucu huda hudd hudi hudu huhi huhu huia huib huid huub iaaa iaac iaai iaba iaca iacc iacu iadb iadc iahc iaia ibac ibad ibca ibia ibid icaa icab icac icad icai icbc icbd icca iccb iccc icci iccu icdc icdd ichc ichd ichi ichu icub idad idah idca idda idha idia idic idid idub ihab ihad ihba ihcc ihua ihub ihud iiac iica iicd iida iiii iiuc iucc iuiu uabc uaca uaua ubac ubba ubbi ubic ubid ubii ubud ucad ucai ucbc ucca ucci ucdc ucdd ucha uchi ucua udaa udad udau udbc udca uddi udic udid uh-d uhid uhuh uica uuuu