a-a a-c aaa aac aae aag aas aav ac- aca acc ace acg acs acv aea aec aee aeg aes aev ag- aga agc age agg ags agv as- asa asc ase asg ass asv av- ava avc ave avg avs c-- caa cac cae cag cas cav cca ccc cce ccg ccs ccv ce- cea cec cee ceg ces cev cga cgc cge cgg cgs cgv csa csc cse csg css csv cva cvc cve cvg cvs cvv eaa eac eae eag eas eav ec- eca ecc ece ecg ecs ecv eea eec eee eeg ees eev ega egc ege egg egs es- esa esc ese esg ess esv eva evc eve evg evs evv gaa gac gae gag gas gav gca gcc gce gcg gcs ge- gea gec gee geg ges gev gga ggc ggg ggs ggv gsa gsc gse gsg gss gsv gva gvc gve gvg gvs saa sac sae sag sas sav sca scc sce scg scs scv se- sea sec see seg ses sev sga sgc sge sgg sgs sgv ss- ssa ssc sse ssg sss ssv sva svc sve svg svs svv v-a v-e vaa vac vae vag vas vav vca vcc vce vcs vea vec vee veg ves vga vgc vgg vgs vsa vsc vse vsg vss vsv vva vvc vvg vvs vvv