cccc cccm cccs ccee ccmc ccmm ccms ccss cec- cece cecm cecs ceec ceem cees ceme cemm cems cesc cese cess cmcc cmcs cmec cmmc cmms cmsc cmse cscc csce cscs csec csee csem csmc csse cssm eccc ecce eccm ecem eces ecsc ecse ecss eecs eeee eees eems eese emcc emcs emes emme emms emse esce escm escs esee esem eses esme esse mccc mces mcmc mcse mcss mec- mecc mece mecs meem mees memc meme mems mes- mesc mese mess mmcc mmcm mmcs mmes mmmc mmmm mmms mmsc mmse mscc msce msec msee msem msmc msmm msms mssm sccc scce sccm sccs scec scee scmc scmm scms scsc se-c se-e se-s sec- secc sece secs seec seem sees semc seme sems sesc sese sess smcc smec smee smsc smss sscc ssce sscs ssec ssee ssem sses ssmc sssc sssm ssss