cccc cccs cchs ccss ccst cctc cctt chch chcs chhs chks chkt chsc chsh chst chtt ckch ckck ckcs ckhs cksh ckst ckts cscc csch cscs cshs csks cstc csts cths ctsc ctss ctts hccc hcch hccs hchs hcsc hcss hcst hhhh hhhs hkcc hkcs hkst hscc hsct hshs hsts htcc hths htsc kccc kcck kcct kchh kchk kchs kckc kckk kcsc kcss kcst kctc khcc khch khck khcs khct khhk khhs khkk khks khss khst khth khtk khts khtt kkch kkck kkcs kkct kkhh kkhk kkkk kkss kkst kktc kktk kkts ksch ksck kscs kshk kshs kskk ksks ksss ksst kstc ksth kstk ksts kstt ktcc ktch ktck ktcs kthc kthh kthk kths ktht ktkc ktkk ktks ktkt ktsc ktst kttc ktth kttk ktts kttt sccc sccs scct sch- schh schs sck- scsc scsh scst sctc scts shcc shhh shhs shsc shts skhs skss sscc sscs sshs sssc sssh ssss sstc ssth ssts stcc stch stcs sths stks stss sttc tccc tch- tchh tchs tcsh tctc tcts thch thss thts tkts tscc tshs tsks tsst tstc tsts ttss tttt