a-ak a-do a-ii a-ok aaaa aaac aaad aaai aaca aacc aacd aaci aack aaco aada aadc aadi aaic aaii aaka aaoo acaa acac acad acai acca accc accd acci acco acda acdc acdi aci- acia acic acid ackd acoa acod adaa adac adad adai adak adao adcc adci adda addc addd addi addo adia adic adik adio adki adoc adod adok adoo aiai aica aicc aicd aida aidc aidi aiia aiic aiid aika aiki aiko aioc aioi akaa akai akao akca akia akid akik akio akka akki akko akok aoca aoki c-cd caaa caac cac- caca cacc caci cack caco cada cadc cadd cadi cado caia caic caid caik caio caka caod caoi ccaa ccac ccad ccai ccca cccc ccci ccdc ccdi ccic ccid ccii ccoc ccod cdaa cdac cdad cdai cdda cdic cdii cdio ciaa ciak ciao cica cicc cici cico cida cidc cidi ciia ciid ciii cika ciko ckac ckck ckco ckdo ckoa ckoc ckoi ckoo coad coai coak coca cock coco coda codd codi coia cok- coka coko cood cook daad daca daci dada dadi dado daia daid daik daio daka daki dako dcca dccc dcci dcia dcii dcio dddd ddoc dia- diac diad diak diao dica dici dick dico dida didi dido diii dika diki diko dioc dkdc dkid doak doca doci dock doco dod- doda dodd dodi dodo doid doka doki doko dood dook iaaa iaac iaai iaca iacc iadc iaia icaa icac icad icai icao icca iccc icci icco icdc icdd icoc icod idad idca idda iddo idia idic idid idio idoc iiac iica iicd iida iiii iiio iioi iioo ikid ikki ikko ikoo ioci iod- ioda iodd iodo ioii ioio ioko iooi iooo k-ci k-id kaaa kaai kaak kacc kacd kaci kaco kad- kada kadd kadi kado kaia kaic kaid kaii kaik kaio kaka kakc kaki kakk kako kaoa kaoc kaoi kaok kcaa kcac kcad kcai kcca kccc kccd kcci kcck kcda kcdc kcdd kcdi kcic kcid kcii kckc kckk kcko kdaa kdac kdad kdai kdak kdao kdca kdcc kdcd kdco kddc kddd kddi kddk kdia kdic kdio kdka kdkd kdkk kdko kdoc kdok kiac kiad kiai kica kicc kicd kick kida kidd kidi kidk kido kiia kiic kiid kiii kiik kika kikc kikd kiki kikk kiko kioa kioc kiod kioi kiok kioo kkaa kkac kkai kkcd kkci kkck kkco kkda kkdc kkdd kkdo kkia kkic kkid kkik kkkk kkoa kkoo koac koai koak koca kocd koci kock koda kodi kodk kodo koii koka kokc koki kokk koko kooc kooi kook kooo oaic ocac ocad ocak occa occc occi odac odai odci odda oddd oddi odia odic odio odoo oici oick oido oiii oiko okak okia okic okka okko okok ooaa ooak ooda oodi ooia ooid oooo