c-cd cccc ccci cccp ccdc ccdi ccdp ccdr ccic ccid ccii ccip ccir ccoc ccod ccpp ccpr ccrc ccri ccrp cd-r cddr cdic cdii cdio cicc cici cico cicr cidc cidi cidp cidr ciid ciii cior cipo cipp circ ciri ciro cirr coco cocp codd codi coip coir cood coop copd copi copo copp copr cor- corc cord cori coro corp corr cozd cozi cozz cpic cpio cppd cpri crcc crcr crcz crdc cric crip croc crod croo crop cror croz crpc dccc dcci dccp dcii dcio dcop dcpo dddd ddoc ddpo ddrc dici dico didi dido diii dioc diop dior dipc dipo dipp dird dirr dizi dizz doci doco dod- dodd dodi dodo doid dood doop door dopo dopp dopr dorc dord dori doro dorp dorr dozi dozo dpci dpcp dppc dric drip drod drop droz dzip dzor dzrr iccc icci icco iccp iccr icdc icdd icdp icoc icod icor icpc icpd icpo icrc icrr idcr iddo idic idid idio idir idoc idrc idro iicd iiii iiio iioi iioo iiop iirc ioci iocp iod- iodd iodo ioii ioio iooi iooo iori ipcc ipdc ipdi ipid ipod ipop ippc ippo ippr ipri ircc ircd irdc irdo irdp iri- iric irid irio irip iroc irod irop irpc irrc irri izod izzo occc occi ocpd ocpp ocro ocrr odci oddd oddi odic odio odir odoo odop odor odrp odzi oici oido oiii oipc oocr oodi ooid oooo oord oozi opic opii opio opo- opor oppi oppo orci orco ordo ori- oric orid orio oro- oror oroz orpc orpi orri orro orzo ozd pccc pcip pcod pcpp pcrc pcrd pdci pdcp pdic pdoc pdpr pdrc picc pici pico picr pido piip pioz pipi pipo pipp pirc piri piro pirr pocd poco pod- podd podi podo poid poio pood poop poor pop- popc popi popo popp porc pori poro porr porz pozo ppcc ppcd ppci ppic ppid ppod pppd pppo pppp pprc prcc prcd prcp pri- prid prii pro- proc prod proo prop proz prpd prrd prri rccc rcdc rcic rcid rcpd rcpi rcpo rcrd rdio rdoc rdpc ricc rico ridc ridd ridi rido rioz ripd ripi ripp ripr riri rizi rizz rocc roco rodd rodi rodo roid roio roir roiz rood rooi roop roor rooz ropo rorc rori roro rozi rozz rpdp rpii rrrr rzip z-ro zico zidi ziip zipp zirc ziri ziro zirp zizi zizz zoco zodd zodi zoic zoid zoio zoo- zoop zorc zord zori zoro zozo zzzz