-er c-- ccc cce cck ccr ccs ccu ce- cec cee cek cer ces ceu ckc cks crc cre crk crr crs cru csc cse csk csr css csu cuc cue cuk cur cus cuu ec- ecc ece eck ecr ecs ecu eec eee eek eer ees ekc eke ekr eks eku erc ere erk err ers eru es- esc ese esk esr ess esu eu- euc eue eur eus kcc kce kck kcr kcs kcu ke- kec kee kek ker kes kkc kke kkk kkr kks kku krc krk krr krs kru ksc kse ksk ksr kss ksu kuc kue kuk kur kus kuu rcc rce rcr rcs rcu re- rec ree rek rer res reu rkc rke rkk rks rku rrc rrk rrr rrs rru rsc rse rsk rsr rss rsu ruc rue ruk rur rus ruu scc sce sck scr scs scu se- sec see sek ser ses seu sk- skc ske skk skr sks sku sr- src sre srk srr srs ss- ssc sse ssk ssr sss ssu suc sue suk sur sus suu ucc uce uck ucr ucs ucu uec uee uer ues ukc uke ukk ukr uku ur- urc ure urk urr urs uru usc use usk usr uss usu uuc uue uur uus uuu

cccc cccs cccu ccee ccrc ccre ccrs ccss ccuc ccus cec- cece cecs ceec cees ceke cer- cerc cere cers cesc cese cesr cess ckck ckcs cker ckrc crcc crce crcr cre- crec cree cres creu crkc crss crue cruk crus cscc csce cscr cscs csec csee cser csks csrc csrs csse cssr csur csus cucc cuce cuck cuek cuer cues cuk- cuke cure curr curs cusk cuss cusu eccc ecce eces ecks ecrc ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eerc eers eese eesk ekek eker ekes ekur ercc erce erec erer eres erke erks errc erre errs erse eruc erur erus esce escr escs escu esee esek eser eses eske esks esku esse essu esus euer eur- eurc eure euse kccc kcck kccr kccu kcec kcee kceu kckc kckk kckr kcrc kcrr kcrs kcru kcsc kcse kcsr kcss kcsu kcue kcuk keck kecr keek keer kees kekc keke keks keku ker- kerc kere kerk kerr kers keru kesc kesk kesr kess keur keus kkck kkcr kkcs kkkk kkrc kkre kkrk kkrr kkrs kkse kksr kkss kksu kkus kkuu krcc krce krcs krcu krec kree krek kres kreu krkc krke krkk krkr krks krku krrc krre krrk krrr krrs krsc krse krsk krsr krss krsu kruc krue kruk krur ksce ksck kscr kscs kscu ksec ksee ksek kser kske kskk kskr ksks ksku ksrr ksrs ksse kssr ksss kssu ksue ksuu kucc kuce kucr kuek kues kueu kuke kukk kuks kuku kure kurk kurr kurs kuru kusc kusu kuuk kuur kuuu rccc rccs rcsc rcss recc rece reck recr recs recu reek rees reke reks rere rers reru rese ress reue reuk reus reuu rkss rrrr rscc rscs rsee rsre ruce ruck ruer rues ruke rukk ruku rurc rure rurs ruru ruse rusk russ rusu sccc scce sccs scec scee scer sck- scr- scrc scre scrs scsc scsr scsu scur se-c se-e se-k se-s se-u sec- secc sece seck secr secs secu seec seek seer sees seeu seke sekk seku serc sere serk serr sers seru sesc sese sess seur skee sker skes skss skue skur srcc srec sres sscc ssce sscs ssec ssee sses ssrc ssrs sssc ssss suc- succ suck sucr sucs suee suer sues sueu suke suks suku sur- surc sure surr surs suru sus- suse susk suss susu suus uces ucrc ucsc ucsu uers uess ukcc ukek ukes ukeu ukrc uksc ukur ure- ures urke urre urse urss ursu uruk urur urus us-k uscc usce uscs usee user uses uske ussc usse ussr usss ussu usus uuuu

ccccc ceere ceese cerc- cerce cercs cerec cerer ceres cerke cerre cerrs cerse cerss cerus cesce cescr cesse crece creek creer crees creke cresc crese cress creu- creue crres cruce cruck cruke crure cruse csere cucks cucuk cuers cuker cukes curce curer cures curre currs curse cusec cuser cusks cusse ecker ecrus ecser eecke eeeee ekers ekker ekuku ekuru erecs erere eresk erkec erres erses eruke esces esere esker esser esses essse essue esure eucre eurre eurus euser kecer kecks keeks keere kekec kerek keres kerre kerrs kerse kerss keser kesse kreek krees kreke kresk kress kreuk kruse kucer kucuk kukec kuksu kukur kurek kurku kurre kurse kursk kuruc kuruk kurus kusur kuuse kuusk recce recke recks recue recur recus reece reecs reeks reere reese reesk rekke rere- reree reres resee reses reske resse resue resus reuer reuse reuss rucer rucks ruere ruers rukke rukus rurec rusce ruses rusks russe scere screc scree scrue scrus scure scurr scuse secke secre secur secus seece seeke seeks seere seers seese seesu seker sekes sekke sekur serce serec serer seres serke serre serse serss serue sesce seser seses sesse sesue seuer seure seuss skeck skeer skees skere skers skruk skure skurr skuru skuse sssss suck- sucks sucr- sucre suere suers suess sueur suker sukru sukuk sukur surer sures surre sursk suruk surur surus susek suser suses suske susse susuk susus u-cee uceku ukeke urker ursuk ursus uruce urucu us-ks us-sc usees users usker usses usure uuuuu

ceecee ceesse cercus cereus ceruce ceruse cesser cesses cesure creeke creeks creese cresce cresse cresus creuse cruces crucks cruses csecse curers currer cursee curser curses cursus cuscus cusecs cusser cusses eresus ersure escuse eskers essess esssse essure keeker kekcse kekes kereks kereru kerker kerkuk kersee kerser keseru keskus kesses keuruu kreese kreker kresek kresse krueck krusce kruuse kukere kukes kurese kurkcu kurkse kurree kururu kuskus re-use recces recess recrue recuer recure recurs recuse reeker reekes reeser reeses rerees rescue reseek resees reskus resuck resues reuere reuser reuses rreuse ruccus rucker ruckus rukkus rurkee ruscus russer russes russus screek screes scruse scurer secess secker secres secuer secure see-er seeker seesee sekere sercer sercus serere serers sereus serre- serres seruse sesser