c-cd cccc cccf ccci ccdc ccdf ccdi ccdr cced ccee ccfc ccfd ccff ccfi ccic ccid ccii ccir ccrc ccre ccrf ccri cd-e cd-r cddr cdec cdef cder cdfe cdic cdii cdre cec- cece ceci cedd cede cedi ceec cef- cefc ceke cer- cerc cerd cere cerf ceri cfcf cffr cfre cicc cici cicr cidc cide cidi cidr ciee cier cife ciff ciid ciii cikr circ cire ciri cirk cirr ckck cker ckfi ckfr ckrc ckrd crcc crce crcr crdc cre- crec cred cree crei crfc cric crie crif crik crkc dccc dcci dcfc dcii dcrk dddd ddie ddrc ddre dec- decc decd dece deci deck dedd dede dedi deed deef deek deer defe deff defi deid deie deif deir dek- deke der- derc dere derf deri derk derr dfcc dfer dfrf dfri dice dici dick dide didi died dief dier dif- diff diii dike diki dird dire dirk dirr dkdc dkid dred dree dref drei drek drfc dric drie drif eccc ecce ecci ecdc ecdf eced ecef ecfc ecfr ecrc ecrf ecri ecrr eddc edde eddi ede- edei eder edie edif edik eede eeee eefe eeke eerc effi efic efik efke eick eid- eide eidi eidr eiec eied eiei eier eike eiki eird eire eked ekek eker ekfc ekki ercc erce erde erdf erdi erec ered erei erer erfc eric erie erik erke erki errc erre f--k fccf fcic fcii fdic fece feck fede fedi feed feek feer fefc fefe feff fefi feid feie feir feke ferc ferd fere ferk ferr ffcc ffee ffff ffii ffrr ficc fice fick fidc fide fidf fiec fief fier fifc fife fiff fifi fiii fike fiki fire firk frcc fred free frei frfc fric frid frie frik iccc iccf icci iccr icdc icdd icde icec iced icee icef icer icke icrc icre icrf icrr idce idcr idec ided idee idef ider idfc idic idid idie idir idrc idre idrf iecc iedr ieie iere ieri ifcd ifer ific ifid ifrf ifri iicd iide iied iiie iiii iirc ikee iker ikid ikki ikri ircc ircd irdc ired iree irer irfe iri- iric irid irie irki irrc irre irri k-ci k-id kccc kccd kcci kcck kccr kcdc kcdd kcdi kcdr kcec kced kcee kcei kcfc kcfd kcfi kcic kcid kcie kcif kcii kcir kckc kckf kckk kckr kcrc kcri kcrr kdcc kdcd kdce kdcr kddc kddd kddf kddi kddk kddr kdec kdef kdei kdfc kdfi kdfr kdic kdkd kdkk kdkr kdrf kdri keck kecr kedc kedd kede kedi kedr keed keef keek keer kefc keff kefr keid keif keii keik keir kekc keke keki ker- kerc kere kerf keri kerk kerr kfcd kfcf kfcr kfed kfer kfff kffk kfir kfrc kfrd kfre kfri kfrr kicc kicd kice kick kicr kidd kide kidi kidk kidr kief kier kife kiff kifr kiic kiid kiii kiik kikc kikd kikf kiki kikk kikr kirc kirf kiri kirk kirr kkcd kkci kkck kkcr kkdc kkdd kked kkfi kkfr kkic kkid kkik kkkk kkrc kkre kkrf kkrk kkrr krcc krcd krce krci krdc krdd krde krdr krec kred kree kref krei krek krfc krfd krfe krff krid krik krkc krkd krke krki krkk krkr krrc krre krrf krri krrk krrr rccc rcdc rcde rcfc rcic rcid rcrd rder recc recd rece reci reck recr redc redd rede redi redr reed reef reek refd refe reff refi refr reid reif reii reik reir reke reki rerd rere reri rfdi rfef rffc rfic rfid ricc rice rick ridc ridd ride ridi ried rief riek rier rife riff riif rike riki rikk rire riri rkkf rred rrfc rrif rrrr