c-cd cccc ccci cccu ccdc ccdi ccdr ccic ccid ccii ccir ccoc ccod ccrc ccri ccrt cctc cctt ccuc ccut cd-r cddr cdic cdii cdio cdot cicc cici cico cicr cict cicu cidc cidi cidr cidt ciid ciii ciit cior circ ciri ciro cirr cirt citi cito citt citu ciuc coco coct cocu codd codi coir coit cood coot cor- corc cord cori coro corr cort cotc coti coto cott cotu coud cour cout crcc crcr crdc cric crit criu croc crod croo cror crot crrt crtc crud crut ctic ctor ctot ctrc cucc cuci cudi cui- cuir cuit curd curi curo curr curt cut- cutc cuto cutt dccc dcci dcct dccu dcii dcio dctc dddd ddoc ddot ddrc dici dico dict didi dido didu diii dioc dior diot diou dird dirr dirt diti dito ditt doci doco doct docu dod- dodd dodi dodo doid doit dood door doot dorc dord dori doro dorr dort doru dotd doti doto dott douc doud dour dout dric drit drod drot drou drui drut druu dtcc dtor dtot duco duct dudd dudo dudu duid duir duit duo- duri duro durt duru duur duut iccc icci icco iccr icct iccu icdc icdd icoc icod icor icrc icrr icrt icru idcr iddo idic idid idio idir idoc idrc idro iduo iicd iiii iiio iiit iioi iioo iirc iitr iitt iiuc ioci iod- iodd iodo ioii ioio ioit iooi iooo iori ioto ircc ircd ircu irdc irdo iri- iric irid irio iroc irod irrc irri irti itdo itic itoi itoo itor itou itri itto itur iucc iuiu occc occi occt ocro ocrr oct- octi octo ocur odci oddd oddi odic odio odir odiu odoo odor odot odou odtu odur oici oido oiii oirt oitc oiti oocr oodi ooid oooo oord oort orci orco ordo ordu ori- oric orid orio orit oro- oror orot orri orro ortc orto otcd otic otit oto- otoo otor otro otti otto ottu otur oucc oudc ouii ouir ouit our- ouro ourt out- outi outo ouu- rccc rcdc rcic rcid rcrd rctc rcti rdio rdoc ricc rico rict ridc ridd ridi rido riot riou riri riti rito ritt ritu rocc roco rodd rodi rodo roid roio roir roit roiu rood rooi roor root rorc rori roro rort roru rotc roti roto rotr rott roud rout rrrr rtcc rtdt ruci ruct rudd rudi rudo ruid ruit rurc rurd ruri ruro ruru ruti ruto rutt rutu ruud tccc tccu tcdd tctc tdor tdri ticc tico tidc tidd tiit tiiu tiou tird tiri tiro tirr tiru titc titi tito titt titu toci toco todd todi todo todt todu toid toit tood toor toot torc tord tori toro torr tort toru totc totd toti toto totr tott toui tour tout trcc tri- tric trio trit troc trod troi troo trot trou trtc trtr truc trud trut truu tttt tucc tuco tudi tudu tuit tuiu tuor turc turd turi turo turr turt turu tuti tuto tutt tutu tuuo ucci ucdc ucdd ucio ucrc ucut uddi udic udid udir udoo udot uirr uocc uor- urci urdu uric uriu uro- uroo urri urur urut utid utor utri utti utto uttu uuoc uuri uuuu