cccc cccs cccu ccgc ccgs ccrc ccrg ccrs ccsg ccss ccuc ccus cgcc cgcg cggs cgss crcc crcr crgs crss crug crus cscc cscr cscs csrc csrs cssr csur csus cucc curr curs cusg cuss cusu gc-c gccc gccs gcrg gcss gcsu gggg ggss grcc grrr grrs grss grug grur grus gsur gugg gugu gurg gurr gurs guru guss guus rccc rccs rcgc rcrg rcsc rcss rrrr rscc rscs rsgc rugg rugs rurc rurs ruru russ rusu sccc sccs scgs scr- scrc scrs scsc scsr scsu scug scur sgcg sggg sggs sgss srcc sscc sscs ssgs ssrc ssrg ssrs sssc ssss suc- succ sucr sucs sug- sugg sur- surc surg surr surs suru sus- suss susu suus ucrc ucsc ucsu ugcc ugcg uggs ugur uguu urgu urss ursu urur urus uscc uscg uscs ussc ussr usss ussu usus uuuu