c-cd cccc ccci cccp cccu ccdc ccdi ccdp ccdr ccic ccid ccii ccip ccir ccoc ccod ccpp ccpr ccrc ccri ccrp ccuc ccup cd-r cddr cdic cdii cdio cicc cici cico cicr cicu cidc cidi cidp cidr ciid ciii cior cipo cipp circ ciri ciro cirr ciuc ciup coco cocp cocu codd codi coip coir cood coop copd copi copo copp copr cor- corc cord cori coro corp corr coud coup cour cpcu cpic cpio cppd cpri crcc crcr crdc cric crip criu croc crod croo crop cror crpc crud crup cucc cuci cudi cui- cuir cupo cupp cupr curd curi curo curr dccc dcci dccp dccu dcii dcio dcop dcpo dcup dddd ddoc ddpo ddrc dici dico didi dido didu diii dioc diop dior diou dipc dipo dipp dipu dird dirr doci doco docu dod- dodd dodi dodo doid dood doop door dopo dopp dopr dorc dord dori doro dorp dorr doru douc doud doup dour dpci dpcp dppc dric drip drod drop drou drui drup druu duco dudd dudo dudu duid duir duo- dupo duri duro duru duur iccc icci icco iccp iccr iccu icdc icdd icdp icoc icod icor icpc icpd icpo icrc icrr icru icup idcr iddo idic idid idio idir idoc idrc idro iduo iicd iiii iiio iioi iioo iiop iirc iiuc ioci iocp iod- iodd iodo ioii ioio iooi iooo iori ipcc ipdc ipdi ipid ipod ipop ippc ippo ippr ipri ipur ircc ircd ircu irdc irdo irdp iri- iric irid irio irip iroc irod irop irpc irrc irri iucc iuiu iupp occc occi ocpd ocpp ocro ocrr ocur odci oddd oddi odic odio odir odiu odoo odop odor odou odrp odur oici oido oiii oipc oocr oodi ooid oooo oord opic opii opio opo- opor oppi oppo orci orco ordo ordu ori- oric orid orio oro- oror orpc orpi orri orro orup oucc oudc ouii ouir our- ouro ouu- pccc pcip pcod pcpp pcrc pcrd pdci pdcp pdic pdoc pdpr pdrc picc pici pico picr picu pido piip pipi pipo pipp pirc piri piro pirr piru pocd poco pod- podd podi podo podu poid poio pood poop poor pop- popc popi popo popp porc pori poro porr poud poui poup pour ppcc ppcd ppci ppic ppid ppod pppd pppo pppp pprc ppru ppur prcc prcd prcp pri- prid prii pro- proc prod proo prop prou prpd prrd prri prud pruu pudo pudu puid puir puiu pupi pupu pur- puri puro purp purr puru puuc rccc rcdc rcic rcid rcpd rcpi rcpo rcrd rdio rdoc rdpc ricc rico ridc ridd ridi rido riou ripd ripi ripp ripr riri rocc roco rodd rodi rodo roid roio roir roiu rood rooi roop roor ropo rorc rori roro roru roud roup rpdp rpii rrrr ruci rudd rudi rudo rudp ruid rupp rurc rurd ruri ruro rurp ruru ruud u-rp ucci uccp ucdc ucdd ucio ucrc uddi udic udid udir udoo udop udpd uipi uirr uocc uor- upci updo upic upor uppc uppp uppu upri upup urci urdu uric uriu uro- uroo urpo urri urup urur uucp uuoc uuri uuuu