cccc cccs cccu ccee ccss ccst cctc cctt ccuc ccus ccut cec- cece cecs cect ceec cees cesc cese cess cest cet- cete cets cscc csce cscs csec csee cset csse cstc csts csus ctec ctsc ctss ctsu ctts cucc cuce cues cuss cust cusu cut- cutc cute cuts cutt eccc ecce ecct eces ecsc ecse ecss ecsu ect- ectc ects ecus eecs eeee eees eese eetc eete eets eetu esce escs escu esee eses eset esse esst essu estc este ests esus etcc etcs etec etee etes etsu ette ettu euse sccc scce sccs scct scec scee scet scsc scst scsu sctc scts scut se-c se-e se-s se-t se-u sec- secc sece secs sect secu seec sees seet seeu sesc sese sess sest set- setc sete sets sett sscc ssce sscs ssec ssee sses sset sssc ssss sstc ssts stcc stcs stcu stec stee stes stet stss sttc stuc stue stus stut suc- succ sucs suee sues suet sueu sus- suse suss sust susu sute sutu suus tccc tccu tctc tcts tecs tect teec tees teet tesc tese tess test tete tets tett tetu teut tscc tsec tses tset tsse tsst tstc tsts ttss tttt tucc tues tuet tusc tuss tust tute tuts tutt tutu uces ucsc ucst ucsu ucut uess uscc usce uscs usee uses uset ussc usse usss usst ussu ustc uste usts usus utec utes utsc uttu uuuu