cccc cccf cccs cccu ccfc ccff ccrc ccrf ccrs ccrt ccsf ccss ccst cctc cctt ccuc ccus ccut cfcf cfcs cffr cfrt cftc cftr crcc crcr crfc crfs crrt crss crst crtc crtf crts crus crut cscc cscf cscr cscs csfc csfr csrc csrs cssr cstc cstr csts csuf csur csus ctcf ctfc ctfs ctrc ctrs ctsc ctss ctsu ctts cucc cufc cuff curf curr curs curt cuss cust cusu cut- cutc cuts cutt fccf fcsc fcst ffcc ffff ffrr ffss fftf frcc frfc frsc frst fscc fssc fssf ft-c ftfc ftrs ftsr ftuc fuc- fuct fufc fuff fufu fur- furr furs furt fusc fuss fust fusu futs futu rccc rccs rcfc rcsc rcss rctc rcts rffc rftc rrfc rrrr rscc rscs rsfc rsts rstu rtcc rtfc rtss rtts ruct rufc ruff ruft rurc rurs ruru russ rust rusu ruts rutt rutu sccc sccs scct scfc scr- scrc scrs scsc scsr scst scsu sctc sctr scts scur scut sfcc sfcs sffc sfrc sfss sfsu sfts srcc srct srfc srtr sscc sscs ssfc ssrc ssrs sssc sssf ssss sstc ssts stcc stcs stcu stfc stfu strc strs stru stsf stss sttc sttr stuc stuf stur stus stut suc- succ sucr sucs suf- sufc suff sufr sufs sufu sur- surc surf surr surs surt suru sus- suss sust susu sutu suus tccc tccu tcfc tctc tcts tfcu tfrs tfss tftc trcc trfc trfr trst trtc trtr truc trus trut truu tscc tsfc tssf tssr tsst tstc tsts ttfc ttff ttss tttt tucc tufc tuff tuft tufu turc turf turr turs turt turu tusc tuss tust tuts tutt tutu ucrc ucsc ucsf ucst ucsu ucut ufcu urff urft urss ursu urts urur urus urut uscc uscf uscs usfc usfs ussc ussf ussr usss usst ussu ustc usts usus utsc uttu uutf uuuu