cccc cccs ccee cche cchs ccss cec- cece cecs ceec cees cehs ceke cesc cese cess cexe chce chch chcs chec chee cheh chek ches chex chhs chks chsc chse chsh ckch ckck ckcs ckcx ckhs cksh cscc csce csch cscs csec csee cseh cshs csks csse cxxx eccc ecce eces eche echs ecks ecsc ecse ecss eecs eeee eees eehs eeke eeks eese eesk ehcc eheh ehhs ekch ekek ekes ekhs esce esch escs esee esek eses eshs eske esks esse essh exch exec exes exh- hccc hcch hccs hchs hcsc hcss hech heck hecs heek hees hehe hehs heke hesc hesh hess hex- hexe hhex hhhh hhhs hkcc hkcs hkex hkse hscc hses hshs hsse kc-x kccc kcck kcec kcee kche kchh kchk kchs kchx kckc kckk kckx kcsc kcse kcss kech keck keeh keek kees kehk kehs kekc keke keks kesc kesh kesk kess kexs kexx khcc khch khck khcs khec khhk khhs khke khkk khks khkx khse khss khxs kkch kkck kkcs kkex kkhh kkhk kkkk kkse kkss kkxk kkxs kkxx ksce ksch ksck kscs ksec ksee kseh ksek ksex kshe kshk kshs kske kskk ksks kskx ksse ksss kssx kxcs kxex kxkc kxkk kxks kxkx kxsc kxse kxss kxxe kxxk kxxx sccc scce sccs scec scee sch- sche schh schs sck- scsc scsh se-c se-e se-h se-k se-s se-x sec- secc sece sech seck secs seec seeh seek sees seex sehe sehk sehs seke sekk sesc sese sesh sess sex- sexe shcc she- shee sheh shek shes shhh shhs shsc skee skes skhs skss sscc ssce sscs ssec ssee sses ssex sshs sssc sssh ssss xces xexe xhck xkes xxxx