cccc cccs ccee cche cchr cchs ccrc ccre ccrs ccss cec- cece cecs ceec cees cehs cer- cerc cere cers cesc cese cesr cess cexe chce chch chcs chec chee cheh cher ches chex chhs chrc chrr chrs chsc chse chsh chsr crcc crce crcr cre- crec cree creh cres crex crhs crss cscc csce csch cscr cscs csec csee cseh cser cshs csrc csrs csse cssr cxxx eccc ecce eces eche echs ecrc ecrr ecsc ecse ecss eecs eeee eees eehs eerc eers eese ehcc eheh eher ehhs ehre er-x ercc erce erch erec erer eres erhc erhs errc erre errs erse ersh esce esch escr escs esee eser eses eshs esse essh exch exec exer exes exh- exrx hccc hcch hccs hchs hcsc hcss hech hecs heer hees hehe hehs herc here herr hers hesc hesh hess hex- hexe hhex hhhh hhhs hree hrhs hrrc hscc hses hshs hsse rccc rccs rchs rcsc rcss recc rece rech recr recs rees rehe rehs rere rers rese resh ress rexx rhce rhee rhes rhex rhhs rrhs rrrr rscc rsch rscs rsee rshs rsre rxes sccc scce sccs scec scee scer sch- sche schh schr schs scr- scrc scre scrs scsc scsh scsr se-c se-e se-h se-s se-x sec- secc sece sech secr secs seec seeh seer sees seex sehe sehr sehs serc sere serr sers sesc sese sesh sess sex- sexe shcc she- shee sheh sher shes shhh shhs shre shrs shsc srcc srch srec sres srhs sscc ssce sscs ssec ssee sses ssex sshs ssrc ssrs sssc sssh ssss xces xeer xer- xers xexe xxxx