c-cd cccc ccci ccdc ccdi ccdr cced ccee ccic ccid ccii ccir ccoc ccod ccrc ccre ccri ccrt cctc cctt cd-e cd-r cddr cdec cder cdic cdii cdio cdot cdre cec- cece ceci ceco cect cedd cede cedi cedo cedt ceec ceor cer- cerc cerd cere ceri cero cert cet- cete ceti ceto cicc cici cico cicr cict cidc cide cidi cidr cidt ciee cier ciid ciii ciit cior circ cire ciri ciro cirr cirt cite citi cito citt coce coco coct codd code codi coed coir coit cood coot cor- corc cord core cori coro corr cort cotc cote coti coto cott crcc crce crcr crdc cre- crec cred cree crei creo cret cric crie crit croc crod croe croo cror crot crrt crtc ctec ctic ctor ctot ctrc dccc dcci dcct dcii dcio dctc dddd ddie ddoc ddot ddrc ddre dec- decc decd dece deci deco dect dedd dede dedi dedo deed deer deet deid deie deir deit deor der- derc dere deri dero derr dete deto detr dice dici dico dict dide didi dido died dier diet diii dioc dior diot dird dire dirr dirt dite diti dito ditt doce doci doco doct dod- dodd dode dodi dodo doer doid doit dood door doot dorc dord dore dori doro dorr dort dotd dote doti doto dott dred dree drei dret dric drie drit drod drot dtcc dted dtor dtot eccc ecce ecci ecco ecct ecdc eced ecit eco- ecod ecot ecrc ecri ecrr ect- ectc ecto eddc edde eddi eddo ede- edei eder edie edit edoc edod eede eeee eeoc eerc eero eetc eete eico eid- eide eidi eido eidr eiec eied eiei eier eird eire eitc eiti eito eitr eocd eode eoir eore eori eotc eotd eoto ercc erce erde erdi erec ered erei erer eret eric erie erio erit eroc erod eroe eroi eroo errc erre erro etcc etco etec etee eter etic etio etoe etre etro ette etti etto iccc icci icco iccr icct icdc icdd icde icec iced icee icer icet icoc icod icor icrc icre icrr icrt idce idcr iddo idec ided idee ideo ider idic idid idie idio idir idoc idrc idre idro iecc iedr ieet ieie ieio iere ieri iett iicd iide iied iiie iiii iiio iiit iioi iioo iirc iitr iitt ioci iod- iodd iode iodo ioee ioii ioio ioit iooi iooo iore iori iote ioto ircc ircd irdc irdo ired iree irer iri- iric irid irie irio iroc irod irrc irre irri irte irti itdo itec iter itet itic itie itoi itoo itor itri itto o-eo occc occi occt oce oced ocee ocet ocre ocro ocrr oct- octe octi octo odci oddd oddi oded odei odeo oder odet odic odie odio odir odoo odor odot oec- oecc oedo oeec oeid oere oeti oici oido oier oiii oire oirt oitc oiti oocr oodi ooer ooid oooo oord oore oort orce orci orco orde ordo ore- orec ored oreo orer ori- oric orid orie orio orit oro- oroe oror orot orri orro ortc orte orto otcd oted otee oter otic otit oto- otoe otoo otor otre otro otte otti otto rccc rcdc rcde rcet rcic rcid rcrd rctc rcti rder rdio rdoc recc recd rece reci recr rect redc redd rede redi redo redr reed reet reid reii reir reit reod reot rerd rere reri rero rert retd rete reti reto retr rett ricc rice rico rict ridc ridd ride ridi rido ried rier riet riot rire riri rite riti rito ritt rocc roce roco rodd rode rodi rodo roed roer roet roid roio roir roit rood rooi roor root rorc rore rori roro rort rotc rote roti roto rotr rott rred rrrr rtcc rtce rtdt rtee rtei tccc tcdd tctc tdor tdri teco tecr tect tedd tede tedi teec teed teer teet teic teie teir teor ter- terc tere teri tero terr tete teti teto tetr tett ticc tice tico tidc tidd tide tie- tied tiee tiei tieo tier tiet tiit tird tire tiri tiro tirr titc tite titi tito titt toce toci toco todd tode todi todo todt toed toee toei toer toet toid toie toit tood toor toot torc tord tore tori toro torr tort totc totd tote toti toto totr tott trcc tre- trec tred tree trei treo tret tri- tric trie trio trit troc trod troe troi troo trot trtc trte trtr tteo tter ttoe tttt