c-cd cccc ccci cccp ccdc ccdi ccdn ccdp ccdr ccic ccid ccii ccip ccir ccnc ccni ccnp ccnr ccoc ccod ccpn ccpp ccpr ccrc ccri ccrp cd-r cddr cdic cdii cdio cdnc cdon cicc cici cico cicr cidc cidi cidp cidr ciid ciii cin- cinc cind cini cino cion cior cipo cipp circ ciri ciro cirr cnci cnco cncp cndd cndp cnic cnid cnrc cnrr coco cocp codd codi coin coip coir con- conc cond coni conn cono cood coon coop copd copi copo copp copr cor- corc cord cori corn coro corp corr cpic cpio cpni cppd cpri crcc crcr crdc cric crin crip croc crod cron croo crop cror crpc dccc dcci dccp dcii dcio dcon dcop dcpo dddd ddoc ddpo ddrc dici dico didi dido diii din- dinc dini dinn dino dioc dion diop dior dipc dipn dipo dipp dird dirr dnic dnoc dnpo dnrc doci doco dod- dodd dodi dodo doid doin donc dond doni donn dono donp donr dood doon doop door dopo dopp dopr dorc dord dori dorn doro dorp dorr dpci dpcp dpin dpni dppc dric drin drip drno drod dron drop i-no iccc icci iccn icco iccp iccr icdc icdd icdp icnc icoc icod icon icor icpc icpd icpo icrc icrr idcr iddo idic idid idin idio idir idno idoc idon idrc idro iicd iiii iiio iino iioi iioo iiop iirc incd inci inco incr ind- indc indi indo inid inni inno innr ino- inoi inon inor inp- inpi inpp inri inro ioci iocp iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iori ipcc ipdc ipdi ipid ipin ipod ipop ippc ippo ippr ipri ircc ircd irdc irdo irdp iri- iric irid irin irio irip iroc irod iron irop irpc irrc irri n-ii nccc ncci nccn nccp nccr ncdc ncdn ncdr ncid ncip ncnc ncnd ncoc ncor ncpc ncrc ncri ncrp ndcc ndcp nddo ndic ndnp ndoc ndop ndor ndpd ndpr ndrc ndri nicc nicd nici nico nidd nidi nido niip niir nind nini nino nion nioo nipc nipr niro nnnn nnpi nnpr noci noco nodi nodo noid noin noio noir non- noni nonn nono noo- noon nooo noop noor nor- norc nord nori norn noro norr npcc npic npin nppc nppd npri nrdc nric nroc nron nrpc nrpn nrrc nrrd occc occi occn ocin ocon ocpd ocpp ocro ocrr odci oddd oddi odic odin odio odir odon odoo odop odor odrp oici oido oiii oion oipc onc- oncd onco ondi ondo onic onir onni onno onod onon onor oocr oodi ooid oooo oord opic opii opin opio opo- opon opor oppi oppo orci orco ordn ordo ori- oric orid orin orio ornc orni orno oro- oron oror orpc orpi orri orro pccc pcin pcip pcod pcpn pcpp pcrc pcrd pdci pdcp pdic pdoc pdpn pdpr pdrc picc pici pico picr pido piip pinc pind pini pinn pino pinp pion pipi pipo pipp pirc piri pirn piro pirr pnic pnin pnon pnpo pnpp pnro pocd poco pod- podd podi podo poid poin poio ponc pond poni pono ponp pood poon poop poor pop- popc popi popo popp porc pori porn poro porr ppcc ppcd ppci ppic ppid ppod pppd pppn pppo pppp pprc prcc prcd prcp pri- prid prii prin prnd prnp pro- proc prod pron proo prop prpd prrd prri rccc rcdc rcic rcid rcnr rcon rcpd rcpi rcpo rcrd rdio rdoc rdpc ricc rico ridc ridd ridi rido riin rind rinn rino rion ripd ripi ripp ripr riri rnco rncp rndc rndp rnin rnod rocc roco rodd rodi rodo roid roin roio roir ronc rond roni rono rood rooi roon roop roor ropo rorc rori roro rpdp rpii rpon rppn rrrr