cccc cccl cccs cccu cclc ccls ccrc ccrl ccrs ccsl ccss ccuc ccus clrs clsc crcc crcr crls crss crus cscc cscl cscr cscs cslr cslu csrc csrs cssr csur csus cucc culc cull culs curl curr curs cuss cusu lccc lccs lcls lcrl lcrs lcsc lcsr llcc llcs lllc llll lrcs lrrc lrrr ls-r lscs lsrc lssr lucs lull lulu lurs luss rccc rccs rcls rcsc rcsl rcss rlcs rlls rrrr rscc rscs rslc rssl rull rurc rurs ruru russ rusu sccc sccl sccs scl- sclc scls scr- scrc scrs scsc scsl scsr scsu scul scur slcc slcu slrc slrs slsc slsu sluc slur srcc sscc sscs sslc ssrc ssrl ssrs sssc ssss suc- succ sucr sucs sul- sulc sull sulu sur- surc surr surs suru sus- suss susu suus ucrc ucsc ucsu ulcc ullr ulul ulus urls urss ursu urur urus uscc uscs uslu ussc ussr usss ussu usul usus uulu uuuu