a-a a-c aaa aac aae aag aap aas ac- aca acc ace acg acp acs aea aec aee aeg aep aes ag- aga agc age agg agp ags ap- apa apc ape apg app aps as- asa asc ase asg asp ass c-- caa cac cae cag cap cas cca ccc cce ccg ccp ccs ce- cea cec cee ceg cep ces cga cgc cge cgg cgp cgs cpa cpc cpe cpg cpp cps csa csc cse csg csp css eaa eac eae eag eap eas ec- eca ecc ece ecg ecs eea eec eee eeg eep ees ega egc ege egg egp egs ep- epa epc epe epg epp eps es- esa esc ese esg esp ess g-p gaa gac gae gag gap gas gca gcc gce gcg gcp gcs ge- gea gec gee geg gep ges gga ggc ggg ggp ggs gpa gpc gpe gpg gpp gps gsa gsc gse gsg gsp gss p-p paa pac pae pag pap pas pca pcc pce pcg pcp pcs pea pec pee peg pep pes pga pgc pge pgg pgp pgs ppa ppc ppe ppg ppp pps ps- psa psc pse psg psp pss saa sac sae sag sap sas sca scc sce scg scp scs se- sea sec see seg sep ses sga sgc sge sgg sgp sgs spa spc spe spg spp sps ss- ssa ssc sse ssg ssp sss