cccc ccci cccp ccic ccii ccip ccir ccix ccnc ccni ccnp ccnr ccoc ccpn ccpp ccpr ccrc ccri ccrp ccxi cicc cici cico cicr ciii cin- cinc cini cino cion cior cipo cipp circ ciri ciro cirr cixi cnci cnco cncp cnic cnrc cnrr coco cocp coin coip coir coix con- conc coni conn cono coon coop copi copo copp copr cor- corc cori corn coro corp corr cpic cpio cpix cpni cpox cpri crcc crcr cric crin crip croc cron croo crop cror crpc cxii cxix cxpo cxro cxxi cxxx i-no iccc icci iccn icco iccp iccr icnc icoc icon icor icpc icpo icrc icrr iiii iiio iino iioi iioo iiop iirc inci inco incr inni inno innr ino- inoi inon inor inox inp- inpi inpp inri inro ioci iocp ioii ioio ioni ionn iono iooi iooo iori ipcc ipin ipix ipop ippc ippo ippr ipri ircc ircx iri- iric irin irio irip irix iroc iron irop irpc irrc irri ixxi n-ii nccc ncci nccn nccp nccr ncip ncix ncnc ncoc ncor ncpc ncrc ncri ncrp nicc nici nico niip niir nini nino nion nioo nipc nipr niro nixi nnnn nnpi nnpr noci noco noin noio noir noix non- noni nonn nono nonx noo- noon nooo noop noor nor- norc nori norn noro norr npcc npic npin nppc npri nric nroc nron nrpc nrpn nrrc occc occi occn ocin ocon ocpp ocro ocrr oici oiii oion oipc onc- onco onic onir onix onni onno onon onor oocr oooo opic opii opin opio opo- opon opor oppi oppo orci orco ori- oric orin orio orix ornc orni orno oro- oron oror orpc orpi orri orro oxi- oxic oxo- oxon oxox oxxo pccc pcin pcip pcnx pcpn pcpp pcrc picc pici pico picr piip pinc pini pinn pino pinp pion pipi pipo pipp pirc piri pirn piro pirr pixo pixx pnic pnin pnon pnpo pnpp pnro poco poin poio poix ponc poni pono ponp poon poop poor pop- popc popi popo popp porc pori porn poro porr ppcc ppci ppic pppn pppo pppp pprc prcc prcp pri- prii prin prix prnp pro- proc pron proo prop prox prri rccc rcic rcnr rcon rcpi rcpo ricc rico riin rinn rino rion ripi ripp ripr riri rixc rixo rnco rncp rnin rocc roco roin roio roir ronc roni rono rooi roon roop roor roox ropo rorc rori roro roxo rpii rpix rpon rppn rrrr xcii xcon xcri xico xiii xion xixi xoco xorn xoro xorp xoxo xpcc xpin xxii xxix xxxi xxxo xxxx