cccc cccf ccci ccfc ccff ccfi ccic ccii ccir ccnc ccnf ccni ccnr ccoc ccrc ccrf ccri ccrt cctc cctt cfcf cfcn cfco cffr cfit cfni cfnr cfor cfrn cfrt cftc cftr cicc cici cico cicr cict ciff ciii ciit cin- cinc cinf cini cino cint cion cior circ ciri ciro cirr cirt citf citi cito citt cnci cnco cnic cnrc cnrr cnrt cntc cntf cntr coco coct cofc coff cofi coft coif coin coir coit con- conc conf coni conn cono cont coof coon coot cor- corc corf cori corn coro corr cort cotc coti cotn coto cott crcc crcr crfc cric crif crin crit croc cron croo cror crot crrt crtc crtf ctcf ctfc ctfo ctic ctor ctot ctrc ctrn cttn fccf fcic fcii fcot fcto ffcc ffff ffii ffrr fftf ficc fico fict fifc fiff fifi fifo fift fiii fini finn fino fint fion fior firn fitc fiti fitt fnci foci foco fofo foin fono font foof foon foot for- fori forn foro forr fort foti foto fott frcc frcn frfc fric frin frio frit fron frot ft-c ftfc ftii i-no iccc iccf icci iccn icco iccr icct icnc icoc icon icor icrc icrf icrr icrt ifco ific ifit ifni ifno ifnr ifor ifrf ifri iftn ifto iiii iiio iiit iino iioi iioo iirc iitr iitt inci inco incr infi info init inni inno innr ino- inoi inon inor inot inri inro inti intn into intr ioci iofc ioii ioio ioit ioni ionn iono ioof iooi iooo iori iotf ioto ircc iri- iric irin irio iroc iron irrc irri irtf irti itic itif itin itno itof itoi iton itoo itor itrf itri ittf itto n-ii nccc nccf ncci nccn nccr ncct ncfc ncit ncnc ncoc ncor ncrc ncri nctc nctr nfct nfff nfic nfon nftc nfto nicc nicf nici nico nifc niff nift niir niit nini nino nion nioo niro nirt nitc nitf niti nito nitr nnit nnnn nnot nntn noci noco noct nofi noif noin noio noir noit non- noni nonn nono nont noo- noon nooo noor noot nor- norc norf nori norn noro norr nort not- noti noto nott nrfc nric nroc nron nrrc ntcc ntfc ntof ntrc ntto nttr occc occi occn occt ocin ocon ocro ocrr oct- octi octo ofcr off- offc offo offr ofit ofno ofor oici oiii oint oion oirt oitc oiti onc- oncf onco onct onic onir onit onni onno onon onor ont- ontc onti onto oocr ooff oont oooo oort orci orco orff orfi ori- oric orif orin orio orit ornc orni orno oro- orof oron oror orot orri orro ortc orto otfc otic otif otin otit oto- otof oton otoo otor otro otti otto rccc rcfc rcic rcnr rcon rctc rcti rffc rfic rftc ricc rico rict riff rift riif riin rinf rinn rino rion riot riri riti rito ritt rnco rnin rnnt rnot rocc roco rofc roff rofo roif roin roio roir roit ronc roni rono ront roof rooi roon roor root rorc rori roro rort rotc roti rotn roto rotr rott rrfc rrif rrrr rtcc rtfc tccc tcfc tcnn tcon tctc tfin tfot tftc ticc tico tiff tifo tift tiit tinc tini tinn tino tint tion tiri tiro tirr titc titi tito titt tncc tnfc toci toco toff tofi tofo toft toit toni tonn tono toof toon toor toot torc torf tori torn toro torr tort totc toti toto totr tott trcc trfc trfr tri- tric trif trin trio trit trno troc troi tron troo trot trtc trtr ttcn ttfc ttff ttfn tton tttt