cccc cccl cccs cccu ccee ccel cclc ccls ccrc ccre ccrl ccrs ccsl ccss ccuc ccus cec- cece cecs ceec ceel cees cel- celc cele cell cels cer- cerc cere cerl cers cesc cese cesr cess clec clee cler cles cleu clrs clsc clue crcc crce crcr cre- crec cree cres creu crls crss crue crus cscc csce cscl cscr cscs csec csee cser cslr cslu csrc csrs csse cssr csur csus cucc cuce cuer cues culc cule cull culs cure curl curr curs cuss cusu e-cl eccc ecce eccl eces ecrc ecrl ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eele eels eerc eers eese elce elec elee eler eles elle ells ellu else elsu elue elul elus ercc erce erec erel erer eres erle erll errc erre errs erse eruc erur erus esce escr escs escu esee esel eser eses esse essl essu esus euer eule eur- eurc eure euse lccc lcce lccs lcer lces lcls lcrl lcrs lcsc lcsr le-u lece leel leer lees lele lell lelu lerc lere lese less lesu leuc leur llcc llcs lles lleu lllc llll lrcs lrrc lrrr lrse ls-r lscs lses lsrc lssr luce lucs luer lues lule lull lulu lure lurs luse luss rccc rccs rcle rcls rcsc rcsl rcss recc rece recr recs recu reel rees rele rell rels rere rers reru rese ress reue reul reus reuu rlcs rlee rleu rlls rrle rrrr rscc rscs rsee rslc rsre rssl ruce ruel ruer rues rule rull rurc rure rurs ruru ruse russ rusu sccc scce sccl sccs scec scee scel scer scl- sclc scls scr- scrc scre scrs scsc scsl scsr scsu scul scur se-c se-e se-s se-u sec- secc sece secr secs secu seec seel seer sees seeu sele sell sels selu serc sere serr sers seru sesc sese sess seul seur slcc slcu slee sler sles slrc slre slrs slsc slsu sluc slue slur srcc srec sres sscc ssce sscs ssec ssee sses sslc ssle ssrc ssrl ssrs sssc ssss suc- succ sucr sucs suee suel suer sues sueu sul- sulc sule sull sulu sur- surc sure surr surs suru sus- suse suss susu suus ucel uces ucrc ucsc ucsu uele uell uers uess ulcc ulee ules ulle ullr ulul ulus ure- ures urle urls urre urse urss ursu urur urus uscc usce uscs usee usel user uses usle uslu ussc usse ussr usss ussu usul usus uulu uuuu