cccc cccs cccu cchr cchs ccrc ccrs ccss ccuc ccus chch chcs chhs chrc chrr chrs chsc chsh chsr chur chus crcc crcr crhs crss crus cscc csch cscr cscs cshs csrc csrs cssr csur csus cucc curr curs cush cuss cusu hccc hcch hccs hchs hcsc hcss hhhh hhhs hhus hrhs hrrc hscc hshs hsur huch hucs hucu huhs huhu hurr hurs huru hush huss huus rccc rccs rchs rcsc rcss rhhs rhus rrhs rrrr rscc rsch rscs rshs ruch ruhh ruhr ruhs rurc rurs ruru rush russ rusu sccc sccs sch- schh schr schs scr- scrc scrs scsc scsh scsr scsu scur shcc shhh shhs shrs shsc shur shus shuu srcc srch srhs sscc sscs sshs ssrc ssrs sssc sssh ssss suc- succ such sucr sucs suhr sur- surc surr surs suru sus- suss susu suus uchs ucrc ucsc ucsu uhrs uhss uhuh urch urrh urss ursu urur urus uscc usch uscs ushr ushs ushu ussc ussr usss ussu usus uuuu