cccc cccs ccgc ccgs ccrc ccrg ccrs ccsg ccss cgcc cgcg cggs cgss crcc crcr crgs crss cry- crys cscc cscr cscs csrc csrs cssr csys cyc- cycc cycs cyrs cysg cyy- cyyc gc-c gccc gccs gcrg gcss gggg ggss grcc grrr grrs grss gry- grys gyr- gyrs gyss rccc rccs rcgc rcrg rcsc rcss rcyc rrrr rscc rscs rscy rsgc rysy sccc sccs sccy scgs scr- scrc scrs scry scsc scsr sgcg sggg sggs sgss srcc sscc sscs ssgs ssrc ssrg ssrs sssc ssss sycr syrs syry syss yccc yyyy