cccc cccs cchr cchs ccrc ccrs ccrt ccss ccst cctc cctt chch chcs chhs chrc chrr chrs chrt chsc chsh chsr chst chtr chtt crcc crcr crhs crrt crss crst crtc crts cscc csch cscr cscs cshs csrc csrs cssr cstc cstr csts cths ctrc ctrs ctsc ctss ctts hccc hcch hccs hchs hcsc hcss hcst hhhh hhhs hrhs hrrc hscc hsct hshs hsts htcc hths htsc httr rccc rccs rchs rcsc rcss rctc rcts rhhs rrhs rrrr rscc rsch rscs rshs rsts rtcc rths rtss rtts sccc sccs scct sch- schh schr schs scr- scrc scrs scsc scsh scsr scst sctc sctr scts shcc shhh shhs shrs shsc shts srcc srch srct srhs srtr sscc sscs sshs ssrc ssrs sssc sssh ssss sstc ssth ssts stcc stch stcs sths strc strs stss sttc sttr tccc tch- tchh tchr tchs tcsh tctc tcts thch thsr thss thtr thts trcc trhs trst trtc trtr tscc tshs tssr tsst tstc tsts ttss tttt