c-cd cccc ccci ccdc ccdi ccdr ccic ccid ccii ccir ccoc ccod ccrc ccri cd-r cddr cdic cdii cdio cicc cici cico cicr cidc cidi cidr ciid ciii ciko cikr cior circ ciri cirk ciro cirr ckck ckco ckdo ckoc ckoi ckoo ckor ckrc ckrd cock coco codd codi coir cok- coko cood cook cor- corc cord cori cork coro corr crcc crcr crdc cric crik crkc croc crod crok croo cror dccc dcci dcii dcio dcrk dddd ddoc ddrc dici dick dico didi dido diii diki diko dioc dior dird dirk dirr dkdc dkid doci dock doco dod- dodd dodi dodo doid doki doko dood dook door dorc dord dori dork doro dorr dric drod iccc icci icco iccr icdc icdd icoc icod icor icrc icrr idcr iddo idic idid idio idir idoc idrc idro iicd iiii iiio iioi iioo iirc ikid ikki ikko ikoo ikri ioci iod- iodd iodo ioii ioio ioko iooi iooo iori ircc ircd irdc irdo iri- iric irid irio irki iroc irod irrc irri k-ci k-id kccc kccd kcci kcck kccr kcdc kcdd kcdi kcdr kcic kcid kcii kcir kckc kckk kcko kckr kcor kcrc kcri kcro kcrr kdcc kdcd kdco kdcr kddc kddd kddi kddk kddr kdic kdio kdkd kdkk kdko kdkr kdoc kdok kdri kdro kicc kicd kick kicr kidd kidi kidk kido kidr kiic kiid kiii kiik kikc kikd kiki kikk kiko kikr kioc kiod kioi kiok kioo kirc kiri kirk kiro kirr kkcd kkci kkck kkco kkcr kkdc kkdd kkdo kkic kkid kkik kkkk kkoo kkor kkrc kkrk kkro kkrr kocd koci kock kodi kodk kodo koii koir kokc koki kokk koko kokr kooc kooi kook kooo koor korc kord kori kork koro korr krcc krcd krci krco krdc krdd krdo krdr krid krik krio krkc krkd krki krkk krko krkr kroc krod kroi krok kroo kror krrc krri krrk krro krrr occc occi ocro ocrr odci oddd oddi odic odio odir odoo odor oici oick oido oiii oiko okic okir okko okok okor okro oocr oodi ooid oooo oord orci orco ordo ori- oric orid orio orko oro- orok oror orri orro rccc rcdc rcic rcid rcrd rdio rdoc ricc rick rico ridc ridd ridi rido riki rikk riri rocc rock roco rodd rodi rodo roid roik roio roir roki rokk roko rokr rood rooi rook roor rorc rori rork roro rrrr