a-a a-c aaa aac aae aag aas ac- aca acc ace acg acs aea aec aee aeg aes ag- aga agc age agg ags as- asa asc ase asg ass c-- caa cac cae cag cas cca ccc cce ccg ccs ce- cea cec cee ceg ces cga cgc cge cgg cgs csa csc cse csg css eaa eac eae eag eas ec- eca ecc ece ecg ecs eea eec eee eeg ees ega egc ege egg egs es- esa esc ese esg ess gaa gac gae gag gas gca gcc gce gcg gcs ge- gea gec gee geg ges gga ggc ggg ggs gsa gsc gse gsg gss saa sac sae sag sas sca scc sce scg scs se- sea sec see seg ses sga sgc sge sgg sgs ss- ssa ssc sse ssg sss