cccc cccs cccu ccrc ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut crcc crcr crrt crss crst crtc crts crus crut cscc cscr cscs csrc csrs cssr cstc cstr csts csur csus ctrc ctrs ctsc ctss ctsu ctts cucc curr curs curt cuss cust cusu cut- cutc cuts cutt rccc rccs rcsc rcss rctc rcts rrrr rscc rscs rsts rstu rtcc rtss rtts ruct rurc rurs ruru russ rust rusu ruts rutt rutu sccc sccs scct scr- scrc scrs scsc scsr scst scsu sctc sctr scts scur scut srcc srct srtr sscc sscs ssrc ssrs sssc ssss sstc ssts stcc stcs stcu strc strs stru stss sttc sttr stuc stur stus stut suc- succ sucr sucs sur- surc surr surs surt suru sus- suss sust susu sutu suus tccc tccu tctc tcts trcc trst trtc trtr truc trus trut truu tscc tssr tsst tstc tsts ttss tttt tucc turc turr turs turt turu tusc tuss tust tuts tutt tutu ucrc ucsc ucst ucsu ucut urss ursu urts urur urus urut uscc uscs ussc ussr usss usst ussu ustc usts usus utsc uttu uuuu