-er a-a a-c aaa aac aae aag aah aap aar aas ac- aca acc ace acg ach acp acr acs aea aec aee aeg aeh aep aer aes ag- aga agc age agg agh agp agr ags aha ahc ahe ahg ahh ahp ahr ahs ap- apa apc ape apg aph app apr aps ar- ara arc are arg arh arp arr ars as- asa asc ase asg ash asp asr ass c-- caa cac cae cag cah cap car cas cca ccc cce ccg cch ccp ccr ccs ce- cea cec cee ceg ceh cep cer ces cga cgc cge cgg cgh cgp cgr cgs ch- cha chc che chg chh chp chr chs cpa cpc cpe cpg cph cpp cpr cps cra crc cre crg crh crp crr crs csa csc cse csg csh csp csr css eaa eac eae eag eah eap ear eas ec- eca ecc ece ecg ech ecr ecs eea eec eee eeg eep eer ees ega egc ege egg egh egp egr egs eha ehc ehe ehg ehh ehp ehr ehs ep- epa epc epe epg eph epp epr eps era erc ere erg erh erp err ers es- esa esc ese esg esh esp esr ess g-p gaa gac gae gag gah gap gar gas gca gcc gce gcg gch gcp gcr gcs ge- gea gec gee geg geh gep ger ges gga ggc ggg ggh ggp ggr ggs gha ghc ghe ghg ghh ghp ghr ghs gpa gpc gpe gpg gph gpp gpr gps gra grc gre grg grh grp grr grs gsa gsc gse gsg gsp gsr gss haa hac hae hag hah hap har has hca hcc hce hcg hch hcp hcr hcs he- hea hec hee heg heh hep her hes hga hgc hge hgg hgh hgp hgr hgs hha hhc hhe hhg hhh hhp hhr hhs hpa hpc hpe hpg hph hpp hpr hps hr- hra hrc hre hrg hrh hrp hrr hrs hsa hsc hse hsg hsh hsp hsr hss p-p paa pac pae pag pah pap par pas pca pcc pce pcg pch pcp pcr pcs pea pec pee peg peh pep per pes pga pgc pge pgg pgh pgp pgr pgs pha phc phe phg php phr phs ppa ppc ppe ppg pph ppp ppr pps pra prc pre prg prh prp prr prs ps- psa psc pse psg psh psp psr pss ra- raa rac rae rag rah rap rar ras rca rcc rce rcg rch rcp rcr rcs re- rea rec ree reg reh rep rer res rga rgc rge rgg rgh rgp rgr rgs rh- rha rhc rhe rhg rhh rhp rhr rhs rpa rpc rpe rpg rph rpp rpr rps rra rrc rrg rrh rrp rrr rrs rsa rsc rse rsg rsh rsp rsr rss saa sac sae sag sah sap sar sas sca scc sce scg sch scp scr scs se- sea sec see seg seh sep ser ses sga sgc sge sgg sgh sgp sgr sgs sh- sha shc she shg shh shp shr shs spa spc spe spg sph spp spr sps sr- sra src sre srg srh srp srr srs ss- ssa ssc sse ssg ssh ssp ssr sss