a-ak a-do a-ha a-ok aaaa aaac aaad aaah aaca aacc aacd aach aack aaco aada aadc aaha aahk aaka aaoo acaa acac acad acca accc accd acch acco acda acdc acha achh acho ackd acoa acod acoh adaa adac adad adah adak adao adcc adda addc addd addo adha adhd adho adoc adod adok adoo ahac ahad ahah ahha ahoa ahod ahok akaa akah akao akca akha akka akko akok aoah aoca aodh c-cd caaa caac caah cac- caca cacc cach cack caco cada cadc cadd cado caha caka caod ccaa ccac ccad ccca cccc ccdc ccdh ccha ccoc ccod cdaa cdac cdad cdda chaa chac chad chah chak chao chca chch chha chka choc chod choh chok choo ckac ckch ckck ckco ckdo ckoa ckoc ckoo coad coak coca coch cock coco coda codd coha coho cok- coka coko cood cooh cook daad daca dada dado daha daka dako dcca dccc dddd ddoc dhaa dhad dhak dhao dhod dkdc doak doca doch dock doco dod- doda dodd dodo doha dohc doka doko dood dook haad haak hack haco hada hadh haha haho haka hakk hako hcca hccc hcch hdca hdda hdoc hdod hhaa hhhh hkcc hoac hoad hoca hoch hock hoda hodh hodk hoha hoho hoka hoko hood hook kaaa kaak kacc kacd kach kaco kad- kada kadd kado kaha kahc kaho kaka kakc kakh kakk kako kaoa kaoc kaok kcaa kcac kcad kcah kcca kccc kccd kcck kcda kcdc kcdd kcha kchh kchk kcho kckc kckk kcko kcoh kdaa kdac kdad kdak kdao kdca kdcc kdcd kdco kddc kddd kddk kdka kdkd kdkk kdko kdoc kdok khac khad khak khao khca khcc khch khck khdc khdk khhk khho khka khkk khoa khoc khok kkaa kkac kkcd kkch kkck kkco kkda kkdc kkdd kkdo kkha kkhh kkhk kkkk kkoa kkoh kkoo koac koak koca kocd koch kock koda kodk kodo koha kohd kohh koho koka kokc kokh kokk koko kooc kook kooo ocac ocad ocak occa occc ocha odac odah odda oddd odoh odoo ohad ohcc ohho ohoh ohok okak okha okka okko okok ooaa ooak ooda ooha ooho oooh oooo