c-cd cccc ccci ccdc ccdi ccdr ccic ccid ccii ccir ccoc ccod ccrc ccri ccrt cctc cctt cd-r cddr cdic cdii cdio cdot cicc cici cico cicr cict cidc cidi cidr cidt ciid ciii ciit ciko cikr cior circ ciri cirk ciro cirr cirt citi cito citt ckck ckco ckdo ckoc ckoi ckoo ckor ckot ckrc ckrd cock coco coct codd codi coir coit cok- coko cood cook coot cor- corc cord cori cork coro corr cort cotc coti coto cott crcc crcr crdc cric crik crit crkc croc crod crok croo cror crot crrt crtc ctic ctor ctot ctrc dccc dcci dcct dcii dcio dcrk dctc dddd ddoc ddot ddrc dici dick dico dict didi dido diii diki diko dioc dior diot dird dirk dirr dirt diti dito ditt dkdc dkid doci dock doco doct dod- dodd dodi dodo doid doit doki doko dood dook door doot dorc dord dori dork doro dorr dort dotd doti dotk doto dott dric drit drod drot dtcc dtki dtor dtot iccc icci icco iccr icct icdc icdd icoc icod icor icrc icrr icrt idcr iddo idic idid idio idir idoc idrc idro iicd iiii iiio iiit iioi iioo iirc iitr iitt ikid ikki ikko ikoo ikri ioci iod- iodd iodo ioii ioio ioit ioko iooi iooo iori ioto ircc ircd irdc irdo iri- iric irid irio irki iroc irod irrc irri irti itdo itic itko itoi itoo itor itri itto k-ci k-id kccc kccd kcci kcck kccr kcct kcdc kcdd kcdi kcdr kcic kcid kcii kcir kcit kckc kckk kcko kckr kcor kcot kcrc kcri kcro kcrr kcrt kctc kcti kcto kdcc kdcd kdco kdcr kddc kddd kddi kddk kddr kdic kdio kdkd kdkk kdko kdkr kdkt kdoc kdok kdot kdri kdro kdtd kdti kdtr kicc kicd kick kicr kict kidd kidi kidk kido kidr kiic kiid kiii kiik kiit kikc kikd kiki kikk kiko kikr kikt kioc kiod kioi kiok kioo kiot kirc kiri kirk kiro kirr kirt kitc kiti kito kitr kitt kkcd kkci kkck kkco kkcr kkct kkdc kkdd kkdo kkdt kkic kkid kkik kkit kkkk kkoo kkor kkot kkrc kkrk kkro kkrr kkrt kktc kktk kocd koci kock koct kodi kodk kodo kodt koii koir koit kokc koki kokk koko kokr kooc kooi kook kooo koor koot korc kord kori kork koro korr kort kotc kotd koti kotk koto kotr kott krcc krcd krci krco krdc krdd krdo krdr krid krik krio krit krkc krkd krki krkk krko krkr kroc krod kroi krok kroo kror krrc krri krrk krro krrr krrt krtc krti krtk krto krtr ktcc ktck ktco ktcr ktdc ktdd ktdk ktdo ktdr ktic ktik ktkc ktkk ktko ktkr ktkt ktoc ktok ktoo ktor ktot ktrc ktri ktrk ktro ktrr ktrt kttc ktti kttk ktto kttr kttt occc occi occt ocro ocrr oct- octi octo odci oddd oddi odic odio odir odoo odor odot oici oick oido oiii oiko oirt oitc oiti okic okir okko okok okor okot okro okto oocr oodi ooid oooo oord oort orci orco ordo ori- oric orid orio orit orko oro- orok oror orot orri orro ortc orto otcd otic otit oto- otok otoo otor otro otti otto rccc rcdc rcic rcid rcrd rctc rcti rdio rdoc ricc rick rico rict ridc ridd ridi rido riki rikk riot riri riti rito ritt rocc rock roco rodd rodi rodo roid roik roio roir roit roki rokk roko rokr rood rooi rook roor root rorc rori rork roro rort rotc roti rotk roto rotr rott rrrr rtcc rtdt tccc tcdd tctc tdkr tdor tdri ticc tick tico tidc tidd tiit tiki tiko tird tiri tiro tirr titc titi tito titt tkod toci tock toco todd todi todo todt toid toit toki toko tood took toor toot torc tord tori tork toro torr tort totc totd toti toto totr tott trcc tri- tric trik trio trit troc trod troi troo trot trtc trtr tttt