cccc ccci ccic ccii ccir ccix ccnc ccni ccnr ccny ccoc ccrc ccri ccxi cicc cici cico cicr ciii cin- cinc cini cino cion cior circ ciri ciro cirr cixi cnci cnco cnic cnrc cnrr coco coin coir coix con- conc coni conn cono cony coon cor- corc cori corn coro corr cory coxy coyn coyo coyr crcc crcr cric crin croc cron croo cror croy cry- cryn cryo cxii cxix cxro cxxi cxxx cyc- cycc cyn- cyno cyon cyy- cyyc cyyn i-no iccc icci iccn icco iccr icnc icoc icon icor icrc icrr icry iiii iiio iino iioi iioo iirc inci inco incr incy inni inno innr inny ino- inoi inon inor inox inri inro inyo ioci ioii ioio ioni ionn iono iooi iooo iori ircc ircx iri- iric irin irio irix iriy iroc iron irrc irri iryn ixxi iynx n-ii nccc ncci nccn nccr ncix ncnc ncoc ncor ncrc ncri nicc nici nico nicy niir nini nino nion nioo niro nixi nixy niyi nnnn noci noco noin noio noir noix non- noni nonn nono nonx noo- noon nooo noor nor- norc nori norn noro norr nory noyo nric nroc nron nrrc nycc nyco nycy nyny nyon nyro occc occi occn ocin ocon ocro ocrr oici oiii oion oiry onc- onco onic onir onix onni onno onon onor onoy onyx oocr oooo oory orci orco ori- oric orin orio orix ornc orni orno orny oro- oron oror oroy orri orro orry oryx oxi- oxic oxo- oxon oxox oxxo oxy- oxyn oyon oyri rccc rcic rcnr rcon rcyc ricc rico riin rinn rino riny rion riri rixc rixo rixy riyo rnco rnin rocc roco roin roio roir ronc roni rono rony rooi roon roor roox rorc rori roro rory roxo roxy royn rrrr rynn ryon xcii xcon xcri xico xiii xion xixi xoco xorn xoro xoxo xoyo xxii xxix xxxi xxxo xxxx xxxy xyr- yccc yirn yirr ynon yoix yoni yono yoon yori yorn yoro yory yoyn yoyo yrin yron yryn yyyy