c-cd cccc cccs ccdc ccds cced ccee ccsd ccss ccst cctc cctt cd-e cdcs cdec cdes cdss cec- cece cecs cect cedd cede cedt ceec cees ceke cesc cese cess cest cet- cete cets ckck ckcs ckst ckts cscc cscd csce cscs csec csee cset csks cssd csse cstc cstd csts ctec ctsc ctss ctts dccc dccs dcct dcds dcsc dcss dctc dcts dddd ddes ddss ddts dec- decc decd dece deck decs dect dedd dede deed deek dees deet dek- deke deks des- desc dese desk dess dest dete detk dets dkdc dscc dscs dssc dsst dstc dsts dtcc dted dtek dtss eccc ecce ecct ecdc eced eces ecks ecsc ecse ecss ect- ectc ects eddc edde edds ede- edes edss edts eecs eede eeee eees eeke eeks eese eesk eetc eete eets eked ekek ekes eket esce escs esds esee esek eses eset eske esks esse esst estc estd este ests etcc etcs etds etec etee etes ette kccc kccd kcck kcct kcdc kcdd kcds kcec kced kcee kcet kckc kckk kcsc kcsd kcse kcss kcst kctc kcte kdcc kdcd kdce kddc kddd kddk kdec kdet kdkd kdkk kdkt kdsc kdsd kdsk kdss kdst kdtd keck kedc kedd kede keds kedt keed keek kees keet kekc keke keks kesc kesd kesk kess kest ket- ketc ketd kete ketk kets kett kkcd kkck kkcs kkct kkdc kkdd kkdt kked kkkk kksd kkse kkss kkst kktc kktk kkts ksce ksck kscs ksdc ksdk ksds ksec ksed ksee ksek kset kskd kske kskk ksks ksse ksss ksst kstc kste kstk ksts kstt ktcc ktce ktck ktcs ktdc ktdd ktde ktdk ktec kted ktee ktek ktkc ktke ktkk ktks ktkt ktsc ktsd ktst kttc kttk ktts kttt sccc scce sccs scct scdc scds scec scee scet sck- scsc scsd scst sctc sctd scts sdcc sddc sdds sdes sdet sdsc sdss se-c se-d se-e se-k se-s se-t sec- secc secd sece seck secs sect sede seds seec seed seek sees seet seke sekk sekt sesc sese sess sest set- setc sete sets sett sked skee skes sket sksd skss sscc ssce sscs ssdc ssdd ssec ssee sses sset sssc ssss sstc sstd ssts stcc stcs stds stec sted stee stek stes stet stks stss sttc sttd tccc tcdd tctc tcts tdes tdse tdss teck tecs tect tedd tede tedk teds teec teed teek tees teet teke tesc tesd tese tess test tete tets tett tkts tscc tsec tses tset tsks tsse tsst tstc tsts ttss tttt