c-cd cccc ccci ccdc ccdi ccdn ccdr ccic ccid ccii ccir ccnc ccni ccnr ccoc ccod ccrc ccri ccrt cctc cctt cd-r cddr cdic cdii cdio cdnc cdon cdot cicc cici cico cicr cict cidc cidi cidr cidt ciid ciii ciit cin- cinc cind cini cino cint cion cior circ ciri ciro cirr cirt citi cito citt cnci cnco cndd cnic cnid cnrc cnrr cnrt cntc cntr coco coct codd codi coin coir coit con- conc cond coni conn cono cont cood coon coot cor- corc cord cori corn coro corr cort cotc coti cotn coto cott crcc crcr crdc cric crin crit croc crod cron croo cror crot crrt crtc ctic ctor ctot ctrc ctrn cttn dccc dcci dcct dcii dcio dcon dctc dddd ddoc ddot ddrc dici dico dict didi dido diii din- dinc dini dinn dino dint dioc dion dior diot dird dirr dirt diti dito ditt dnic dnoc dnrc dntt doci doco doct dod- dodd dodi dodo doid doin doit donc dond doni donn dono donr dont dood doon door doot dorc dord dori dorn doro dorr dort dotd doti doto dott dric drin drit drno drod dron drot dtcc dtor dtot i-no iccc icci iccn icco iccr icct icdc icdd icnc icoc icod icon icor icrc icrr icrt idcr iddo idic idid idin idio idir idno idoc idon idrc idro iicd iiii iiio iiit iino iioi iioo iirc iitr iitt incd inci inco incr ind- indc indi indo inid init inni inno innr ino- inoi inon inor inot inri inro intd inti intn into intr ioci iod- iodd iodo ioii ioio ioit ioni ionn iono iooi iooo iori ioto ircc ircd irdc irdo iri- iric irid irin irio iroc irod iron irrc irri irti itdo itic itin itno itoi iton itoo itor itri itto n-ii nccc ncci nccn nccr ncct ncdc ncdn ncdr ncid ncit ncnc ncnd ncoc ncor ncrc ncri nctc nctr ndcc nddo ndic ndnt ndoc ndor ndrc ndri ndtc nicc nicd nici nico nidd nidi nido niir niit nind nini nino nion nioo niro nirt nitc niti nito nitr nnit nnnn nnot nntn noci noco noct nodi nodo noid noin noio noir noit non- noni nonn nono nont noo- noon nooo noor noot nor- norc nord nori norn noro norr nort not- noti noto nott nrdc nric nroc nron nrrc nrrd ntcc ntnd ntrc ntto nttr occc occi occn occt ocin ocon ocro ocrr oct- octi octo odci oddd oddi odic odin odio odir odon odoo odor odot oici oido oiii oint oion oirt oitc oiti onc- oncd onco onct ondi ondo onic onir onit onni onno onod onon onor ont- ontc onti onto oocr oodi ooid oont oooo oord oort orci orco ordn ordo ori- oric orid orin orio orit ornc orni orno oro- oron oror orot orri orro ortc orto otcd otic otin otit oto- oton otoo otor otro otti otto rccc rcdc rcic rcid rcnr rcon rcrd rctc rcti rdio rdoc ricc rico rict ridc ridd ridi rido riin rind rinn rino rion riot riri riti rito ritt rnco rndc rnin rnnt rnod rnot rntd rocc roco rodd rodi rodo roid roin roio roir roit ronc rond roni rono ront rood rooi roon roor root rorc rori roro rort rotc roti rotn roto rotr rott rrrr rtcc rtdt rtnd tccc tcdd tcnn tcon tctc tdor tdri ticc tico tidc tidd tiit tinc tind tini tinn tino tint tion tird tiri tiro tirr titc titi tito titt tncc tndd toci toco todd todi todo todt toid toit toni tonn tono tood toon toor toot torc tord tori torn toro torr tort totc totd toti toto totr tott trcc tri- tric trin trio trit trno troc trod troi tron troo trot trtc trtr ttcn tton tttt