c-cd cccc cccf ccci cccu ccdc ccdf ccdi ccdr ccfc ccfd ccff ccfi ccic ccid ccii ccir ccoc ccod ccrc ccrf ccri ccrt cctc cctt ccuc ccut cd-r cddr cdic cdii cdio cdot cfcf cfco cffr cfit cfor cfrt cftc cftr cicc cici cico cicr cict cicu cidc cidi cidr cidt ciff ciid ciii ciit cior circ ciri ciro cirr cirt citf citi cito citt citu ciuc coco coct cocu codd codi cofc coff cofi coft coif coir coit cood coof coot cor- corc cord corf cori coro corr cort cotc coti coto cott cotu coud cour cout crcc crcr crdc crfc cric crif crit criu croc crod croo cror crot crrt crtc crtf crud crut ctcf ctfc ctfo ctic ctor ctot ctrc cucc cuci cudi cufc cuff cufi cufo cui- cuif cuir cuit curd curf curi curo curr curt cut- cutc cuto cutt dccc dcci dcct dccu dcfc dcii dcio dctc dddd ddoc ddot ddrc dfcc dfco dfcu dfdt dfrf dfri dftr dici dico dict didi dido didu dif- diff diii dioc dior diot diou dird dirr dirt diti dito ditt doci doco doct docu dod- dodd dodi dodo doff doid doit dood doof door doot dorc dord dorf dori doro dorr dort doru dotd doti doto dott douc doud douf dour dout drfc dric drif drit drod drof drot drou drui drut druu dtcc dtfc dtor dtot duco duct dudd dudo dudu dufc duff dufu duid duif duir duit duo- duri duro durt duru duur duut fccf fcic fcii fcot fcto fdic fdoc fdot fdtc fdti ffcc ffff ffii ffrr fftf ficc fico fict fidc fidf fido fifc fiff fifi fifo fift fiii fior fitc fiti fitt foci foco fofo foid food foof foot for- ford fori foro forr fort foti foto fott foud four fout frcc frfc fric frid frio frit frot frou ft-c ftcd ftdi ftfc ftii ftuc fuc- fuci fuct fudd fudi fufc fuff fufu fuid fuir fuit fuor fur- furi furo furr furt futi futo futu iccc iccf icci icco iccr icct iccu icdc icdd icoc icod icor icrc icrf icrr icrt icru idcr iddo idfc idic idid idio idir idoc idrc idrf idro iduo ifcd ifco ific ifid ifit ifor ifrf ifri ifto iicd iiii iiio iiit iioi iioo iirc iitr iitt iiuc ioci iod- iodd iodo iofc ioii ioio ioit ioof iooi iooo iori iotf ioto ircc ircd ircu irdc irdo irfu iri- iric irid irio iroc irod irrc irri irtf irti itdo itic itif itof itoi itoo itor itou itrf itri ittf 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 ofcr ofdr off- offc offo offr offu ofid ofit ofor oici oido oiii oirt oitc oiti oocr oodi ooff ooid oooo oord oort orci orco ordo ordu orff orfi orfu ori- oric orid orif orio orit oro- orof oror orot orri orro ortc orto otcd otfc otic otif otit oto- otof otoo otor otro otti otto ottu otur oucc oudc oufc ouff ouii ouir ouit our- ouro ourt out- outi outo ouu- rccc rcdc rcfc rcic rcid rcrd rctc rcti rdio rdoc rfdi rffc rfic rfid rftc ricc rico rict ridc ridd ridi rido riff rift rifu riif riot riou riri riti rito ritt ritu rocc roco rodd rodi rodo rofc roff rofo roid roif roio roir roit roiu rood roof rooi roor root rorc rori roro rort roru rotc roti roto rotr rott roud rouf rout rrfc rrif rrrr rtcc rtdt rtfc ruci ruct rudd rudi rudo rufc ruff rufo ruft ruid ruif ruit rurc rurd ruri ruro ruru ruti ruto rutt rutu ruud tccc tccu tcdd tcfc tctc tdff tdor tdri tfcu tfdc tfot tftc ticc tico tidc tidd tiff tifo tift tiit tiiu tiou tird tiri tiro tirr tiru titc titi tito titt titu toci toco todd todi todo todt todu toff tofi tofo toft tofu toid toit tood toof toor toot torc tord torf tori toro torr tort toru totc totd toti toto totr tott toui tour tout trcc trfc trfd trfr tri- tric trif trio trit troc trod troi troo trot trou trtc trtr truc trud trut truu ttfc ttff tttt tucc tuco tudi tudu tufc tuff tufi tufo tuft tufu tuit tuiu tuor turc turd turf turi turo turr turt turu tuti tuto tutt tutu tuuo ucci ucdc ucdd ucio ucrc ucut uddi udic udid udir udoo udot ufcu uirr uocc uofo uor- urci urdu urff urfi urft uric urif uriu uro- uroo urri urur urut utfo utid utor utri utti utto uttu uuoc uuri uutf uuuu