cccc cccs cccu cccv ccrc ccrs ccss ccuc ccus ccvs crcc crcr crss crus cry- crys cscc cscr cscs csrc csrs cssr csur csus csys cucc curr curs cury cuss cusu cusy cuvy cuy- cuyr cvcc cvrr cvss cyc- cycc cycs cyrs cyy- cyyc rccc rccs rcsc rcss rcuv rcvr rcvs rcyc rrrr rscc rscs rscy rurc rurs ruru russ rusu rusy ruvu ruys rv-c rysy sccc sccs sccy scr- scrc scrs scry scsc scsr scsu scur srcc sscc sscs ssrc ssrs sssc ssss suc- succ sucr sucs sur- surc surr surs suru surv sury sus- suss susu susy suus suvs suyr suyu svcc svcs svsc sycr syrs syry syss ucrc ucsc ucsu urcy urry urss ursu ursy urur urus uscc uscs ussc ussr usss ussu ussy usus uuuu uv-c uvvu vcrs vssc vvvv vyss yccc yssu yury yuyu yyyy