a-a a-c aaa aac aae aag aah aao aas ac- aca acc ace acg ach aco acs aea aec aee aeg aeh aeo aes ag- aga agc age agg agh ago ags aha ahc ahe ahg ahh aho ahs aoa aoc aoe aog aoh aoo aos as- asa asc ase asg ash aso ass c-- caa cac cae cag cah cao cas cca ccc cce ccg cch cco ccs ce- cea cec cee ceg ceh ceo ces cga cgc cge cgg cgh cgo cgs ch- cha chc che chg chh cho chs co- coa coc coe cog coh coo cos csa csc cse csg csh cso css eaa eac eae eag eah eao eas ec- eca ecc ece ecg ech eco ecs eea eec eee eeg eeo ees ega egc ege egg egh ego egs eha ehc ehe ehg ehh eho ehs eo- eoa eoc eoe eog eoh eoo eos es- esa esc ese esg esh eso ess gaa gac gae gag gah gao gas gca gcc gce gcg gch gco gcs ge- gea gec gee geg geh geo ges gga ggc ggg ggh ggo ggs gha ghc ghe ghg ghh gho ghs goa goc goe gog goh goo gos gsa gsc gse gsg gso gss haa hac hae hag hah hao has hca hcc hce hcg hch hco hcs he- hea hec hee heg heh heo hes hga hgc hge hgg hgh hgo hgs hha hhc hhe hhg hhh hho hhs hoa hoc hoe hog hoh hoo hos hsa hsc hse hsg hsh hss oaa oac oae oag oah oao oas oc- oca occ ocg och oco ocs oea oec oee oeg oeh oeo oes oga ogc oge ogg ogh ogo ogs oha ohc ohe ohg ohh oho ohs oo- ooa ooc oog ooh ooo oos os- osa osc ose osg osh oso oss saa sac sae sag sah sao sas sca scc sce scg sch sco scs se- sea sec see seg seh seo ses sga sgc sge sgg sgh sgo sgs sh- sha shc she shg shh sho shs soa soc soe sog soh soo sos ss- ssa ssc sse ssg ssh sso sss