cccc cccp cccs ccee ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccsp ccss cec- cece cecp cecs ceec cees cepc cepe cepp cepr ceps cer- cerc cere cerp cers cesc cese cesp cesr cess cpce cpcs cpep cper cpps cpre cprs cpsc cpsr crcc crce crcr cre- crec cree crep cres crpc crps crsp crss cscc csce cscr cscs csec csee csep cser cspc cspe csps csrc csrs csse cssr eccc ecce eces ecpp ecrc ecrr ecsc ecse ecsp ecss eecs eeee eees eeps eerc eers eese epcc epec epee eper epes eppc eppp epps eprp eprs epsc epsp epss ercc erce ercp erec erer eres erpe erps errc erre errs erse esce escr escs esee eser eses espc espe espp esps esse essp pccc pcce pccs pcep pcer pcpp pcps pcrc pcre pcse pece pecr pecs peec peep peer pees pepe peps per- perc pere perp perr pers pese pess ppcc ppcs pper pppp ppps pprc ppss prcc prcp prcs pre- prec pree prep pres prps prrs prsc prse prss psec pspp pspr psps psrp pssc psse rccc rccs rcep rcps rcsc rcss recc rece recp recr recs reep rees repe repp repr reps rere rers rese resp ress rpcs rpps rrrr rrsp rscc rscs rsee rsps rsre sccc scce sccp sccs scec scee scep scer scpe scps scr- scrc scre scrs scsc scsr se-c se-e se-s sec- secc sece secr secs seec seep seer sees sepe sepp sepr seps serc sere serp serr sers sesc sese sess spcc spcs spec spee sper spes spps sprs spse spsp spss srcc srec sres srpc srps srsp sscc ssce sscp sscs ssec ssee ssep sses sspc sspe ssps ssrc ssrs sssc ssss