cccc cccf ccci cccs cccu ccee ccfc ccff ccfi ccic ccii ccir ccis ccrc ccre ccrf ccri ccrs ccsf ccsi ccss ccuc ccus cec- cece ceci cecs ceec cees cef- cefc cer- cerc cere cerf ceri cers cesc cese cesi cesr cess ceui cfcf cfcs cffr cfre cfse cfsi cicc cici cicr cics cicu ciee cier cies cife ciff cifs ciii ciis circ cire ciri cirr cirs cis- cisc cise cisr ciss ciuc cius crcc crce crcr cre- crec cree crei cres creu crfc crfs cric crie crif cris criu crss crue crus cscc csce cscf csci cscr cscs csec csee cser csfc csfr csir csis csrc csrs csse cssr csuf csur csus cucc cuce cuci cuer cues cufc cuff cufi cui- cuif cuir cuis cure curf curi curr curs cuss cusu eccc ecce ecci ecef eces ecfc ecfr ecfs ecis ecrc ecrf ecri ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eefe eerc eers eese eesi efes effi effs efic efsi eics eiec eiei eier eies eifs eire eirs eise eiss ercc erce erec erei erer eres erfc erfs eric erie eris eriu errc erre errs erse ersi eruc erur erus esce esci escr escs escu esee eser eses esfs esie esis esri esse essi essu esuf esui esus euer eufc eufi eur- eurc eure euse fccf fces fcic fcii fcsc fece feer fees fefc fefe feff fefi feie feir feis ferc fere ferr fers feru fese fess feus ffcc ffee ffff ffii ffrr ffss ficc fice fics fiec fief fier fies fifc fife fiff fifi fiii fire firs fisc fise fisi fiss fisu frcc free frei fres frfc fric frie fris frsc frue fscc fsec fsfi fssc fssf fuc- fuci fufc fuff fufu fuir fur- fure furi furr furs fusc fuse fusi fuss fusu iccc iccf icci iccr iccs iccu icec icee icef icer ices icis icrc icre icrf icrr icrs icru icsc icse icsi icsr icss icue icus iecc ieie iere ieri iers iesc iesi iesr iesu ifer ifes ific ifis ifrf ifri ifsc iies iiie iiii iiis iirc iirs iisc iisi iisr iisu iiuc ircc ircs ircu iree irer ires irfe irfu iri- iric irie iris irrc irre irri irrs irse irsf irus iscc isci iscr iscs iscu isec isee iser ises isfc isic isie isis isri issc isse issf issi issr isss issu isus iucc iuce iuef iuiu iuse iuss rccc rccs rcfc rcic rcis rcsc rcsi rcss recc rece reci recr recs recu reef rees refe reff refi refr refs refu reif reii reir reis reiu rere reri rers reru rese resi ress reue reuf reus reuu rfef rffc rfic ricc rice rics rief rier ries rieu rife riff rifs rifu riif riis rire riri rirs risc rise risi riss risu riue rius rrfc rrif rrrr rscc rscs rsee rsfc rsis rsre ruce ruci ruer rues rufc rufe ruff ruif ruis rurc rure ruri rurs ruru ruse rusi russ rusu s-ic s-ii sccc scce sccs scec scee scer scfc scfe scfi sci- scic scie scif scir scis scr- scrc scre scri scrs scsc scsi scsr scsu scur se-c se-e se-f se-i se-s se-u sec- secc sece secr secs secu seec seef seer sees seeu seff sefi seie seif seii seir seis seiu serc sere serf seri serr sers seru sesc sese sesi sess seui seur sfcc sfcs sfer sffc sfrc sfss sfsu sicc sice sici sics sicu siec sief sier sies sife siff sifr sifu sirc sire sirf siri sirr sirs siru sisc sise sisi siss sisu siue siui sius srcc srec sres srfc srfi sris sscc ssce ssci sscs ssec ssee sses ssfc ssis ssrc ssri ssrs sssc sssf sssi ssss suc- succ suci sucr sucs suee suer sues sueu suf- sufc suff sufi sufr sufs sufu suie suir suis sur- surc sure surf suri surr surs suru sus- suse susi suss susu suus u-ie ucci uces ucrc ucsc ucsf ucsu ueir uers uess ufcu ufer uffe uies uirr uise urci ure- ures urfe urff urfi uric urie urif uris uriu urre urri urse ursi urss ursu urur urus uscc usce uscf uscs usee usef user uses usfc usfi usfs usie usif usis ussc usse ussf ussr usss ussu usui usus uuri uusi uuuu