c-cd cccc cccf ccci cccp ccdc ccdf ccdi ccdp ccdr ccfc ccfd ccff ccfi ccic ccid ccii ccip ccir ccoc ccod ccpp ccpr ccrc ccrf ccri ccrp ccrt cctc cctt cd-r cddr cdic cdii cdio cdot cfcf cfco cfdp cffr cfit cfor cfpo cfpr cfrp cfrt cftc cftr cicc cici cico cicr cict cidc cidi cidp cidr cidt ciff ciid ciii ciit cior cipf cipo cipp circ ciri ciro cirr cirt citf citi cito citp citt coco cocp coct codd codi cofc coff cofi coft coif coip coir coit cood coof coop coot copd copi copo copp copr copt cor- corc cord corf cori coro corp corr cort cotc coti coto cott cpff cpft cpic cpif cpio cppd cpri cprt cptp cptr crcc crcr crdc crfc cric crif crip crit croc crod croo crop cror crot crpc crrt crtc crtf crtp ctcf ctcp ctfc ctfo ctic ctor ctot ctpo ctpp ctrc ctrp dccc dcci dccp dcct dcfc dcii dcio dcop dcpo dctc dddd ddoc ddot ddpo ddrc dfcc dfco dfdt dfrf dfri dftr dici dico dict didi dido dif- diff diii dioc diop dior diot dipc dipo dipp dipt dird dirr dirt diti dito ditt doci doco doct dod- dodd dodi dodo doff doid doit dood doof doop door doot dopo dopp dopr dopt dorc dord dorf dori doro dorp dorr dort dotd doti doto dott dpci dpcp dpdt dppc drfc dric drif drip drit drod drof drop drot dtcc dtdp dtfc dtor dtot dttp fccf fccp 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 fipp fitc fiti fitt foci foco fofo foid food foof foot fopp for- ford fori foro forr fort foti foto fotp fott fp-c fpcc fpct fpdt fprf frcc frcp frfc fric frid frio frip frit frop frot frpd ft-c ftcd ftdi ftfc ftii ftop iccc iccf icci icco iccp iccr icct icdc icdd icdp icoc icod icor icpc icpd icpo icrc icrf icrr icrt ictp idcr iddo idfc idfp idic idid idio idir idoc idrc idrf idro idtp ifcd ifco ifcp ific ifid ifit ifor ifpo ifrf ifri ifto iicd iiii iiio iiit iioi iioo iiop iipf iirc iitr iitt ioci iocp iod- iodd iodo iofc ioii ioio ioit ioof iooi iooo iori iotf ioto ipcc ipct ipdc ipdi ipfc ipid ipod ipop ippc ippf ippo ippr ipri iptc ipto ircc ircd irdc irdo irdp iri- iric irid irio irip iroc irod irop irpc irrc irri irtf irti irtp itdo itic itif itof itoi itoo itor itpc itrf itri ittf itto occc occi occt ocfp ocpd ocpp ocro ocrr oct- octi octo odci oddd oddi odic odio odir odoo odop odor odot odrp ofcr ofdr off- offc offo offr ofid ofit ofor oftp oici oido oiii oipc oirt oitc oiti oocr oodi ooff ooid oooo oord oort ootp opic opii opio opit opo- opor oppi oppo opti opto orci orco ordo orff orfi ori- oric orid orif orio orit oro- orof oror orot orpc orpi orri orro ortc orto otcd otfc otfp otic otif otit oto- otof otoo otor otpp otro otti otto pccc pcfc pcip pcod pcpp pcrc pcrd pcrf pdci pdcp pdic pdoc pdpr pdrc pdtc pfff pffr pfft pfic pfit picc pici pico picr pict pido piff piip piot pipi pipo pipp pirc piri piro pirr pitf piti pito pitr pitt pocd poco pod- podd podi podo poff pofi poid poio pood poof poop poor poot pop- popc popi popo popp popt porc pori poro porr port potc potd potf poti poto pott ppcc ppcd ppci ppic ppid ppif ppod pppd pppo pppp pprc pprf pptt prcc prcd prcf prcp prfc pri- prid prif prii pro- proc prod prof proo prop prot prpd prrd prri prtc prti prtp prtr ptcc ptdc ptop ptpd ptrd ptrf pttc rccc rcdc rcfc rcic rcid rcpd rcpi rcpo rcpt rcrd rctc rcti rdio rdoc rdpc rfdi rffc rfic rfid rftc ricc rico rict ridc ridd ridi rido riff rift riif riot ripd ripi ripp ripr ript riri riti rito ritt rocc roco rodd rodi rodo rofc roff rofo roid roif roio roir roit rood roof rooi roop roor root ropo rorc rori roro rort rotc roti roto rotr rott rpdp rpfc rpii rpof rptd rrfc rrif rrrr rtcc rtdt rtfc rttp tccc tcdd tcfc tcpo tctc tdff tdor tdri tfdc tfot tfpt tftc tftp ticc tico tidc tidd tiff tifo tift tiit tiop tip- tipc tipi tipo tipp tipt tird tiri tiro tirr titc titi tito titp titt toci toco todd todi todo todt toff tofi tofo toft toid toit tood toof toor toot top- topd topf topi topo topp topt torc tord torf tori toro torp torr tort totc totd toti toto totr tott tpcd tpcp tpdf tpir tppd tppp tppr tptp tptr trcc trfc trfd trfr tri- tric trif trio trip trit troc trod troi troo trop trot trpc trpp trtc trtr ttcp ttfc ttff ttop tttt