cccc cccf ccci ccfc ccff ccfi ccic ccii ccir ccnc ccnf ccni ccnr ccoc ccrc ccrf ccri cfcf cfcn cfco cffr cfni cfnr cfor cfrn cicc cici cico cicr ciff ciii cin- cinc cinf cini cino cion cior circ ciri ciro cirr cnci cnco cnic cnrc cnrr coco cofc coff cofi coif coin coir con- conc conf coni conn cono coof coon cor- corc corf cori corn coro corr crcc crcr crfc cric crif crin croc cron croo cror fccf fcic fcii ffcc ffff ffii ffrr ficc fico fifc fiff fifi fifo fiii fini finn fino fion fior firn fnci foci foco fofo foin fono foof foon for- fori forn foro forr frcc frcn frfc fric frin frio fron i-no iccc iccf icci iccn icco iccr icnc icoc icon icor icrc icrf icrr ifco ific ifni ifno ifnr ifor ifrf ifri iiii iiio iino iioi iioo iirc inci inco incr infi info inni inno innr ino- inoi inon inor inri inro ioci iofc ioii ioio ioni ionn iono ioof iooi iooo iori ircc iri- iric irin irio iroc iron irrc irri n-ii nccc nccf ncci nccn nccr ncfc ncnc ncoc ncor ncrc ncri nfff nfic nfon nicc nicf nici nico nifc niff niir nini nino nion nioo niro nnnn noci noco nofi noif noin noio noir non- noni nonn nono noo- noon nooo noor nor- norc norf nori norn noro norr nrfc nric nroc nron nrrc occc occi occn ocin ocon ocro ocrr ofcr off- offc offo offr ofno ofor oici oiii oion onc- oncf onco onic onir onni onno onon onor oocr ooff oooo orci orco orff orfi ori- oric orif orin orio ornc orni orno oro- orof oron oror orri orro rccc rcfc rcic rcnr rcon rffc rfic ricc rico riff riif riin rinf rinn rino rion riri rnco rnin rocc roco rofc roff rofo roif roin roio roir ronc roni rono roof rooi roon roor rorc rori roro rrfc rrif rrrr