-al -er a-a a-c aaa aac aae aag aah aal aar aas ac- aca acc ace acg ach acl acr acs aea aec aee aeg aeh ael aer aes ag- aga agc age agg agh agl agr ags aha ahc ahe ahg ahh ahl ahr ahs al- ala alc ale alg alh all alr als ar- ara arc are arg arh arl arr ars as- asa asc ase asg ash asl asr ass c-- caa cac cae cag cah cal car cas cca ccc cce ccg cch ccl ccr ccs ce- cea cec cee ceg ceh cel cer ces cga cgc cge cgg cgh cgl cgr cgs ch- cha chc che chg chh chl chr chs cl- cla clc cle clg clh cll clr cls cra crc cre crg crh crl crr crs csa csc cse csg csh csl csr css eaa eac eae eag eah eal ear eas ec- eca ecc ece ecg ech ecl ecr ecs eea eec eee eeg eel eer ees ega egc ege egg egh egl egr egs eha ehc ehe ehg ehh ehl ehr ehs ela elc ele elg elh ell elr els era erc ere erg erh erl err ers es- esa esc ese esg esh esl esr ess gaa gac gae gag gah gal gar gas gca gcc gce gcg gch gcl gcr gcs ge- gea gec gee geg geh gel ger ges gga ggc ggg ggh ggr ggs gha ghc ghe ghg ghh ghl ghr ghs gla glc gle glg glh gll glr gls gra grc gre grg grh grl grr grs gsa gsc gse gsg gsl gsr gss haa hac hae hag hah hal har has hca hcc hce hcg hch hcl hcr hcs he- hea hec hee heg heh hel her hes hga hgc hge hgg hgh hgl hgr hgs hha hhc hhe hhg hhh hhl hhr hhs hla hlc hle hlg hlh hll hlr hls hr- hra hrc hre hrg hrh hrl hrr hrs hsa hsc hse hsg hsh hsl hsr hss la- laa lac lae lag lah lal lar las lca lcc lce lcg lch lcl lcr lcs lea lec lee leg leh lel ler les lga lgc lge lgg lgh lgl lgr lgs lha lhc lhh lhr lhs lla llc lle llg lll llr lls lra lrc lrg lrh lrr lrs lsa lsc lse lsg lsh lsl lsr lss ra- raa rac rae rag rah ral rar ras rca rcc rce rcg rch rcl rcr rcs re- rea rec ree reg reh rel rer res rga rgc rge rgg rgh rgr rgs rh- rha rhc rhe rhg rhh rhl rhr rhs rla rlc rle rlg rlh rll rlr rls rra rrc rrg rrh rrl rrr rrs rsa rsc rse rsg rsh rsl rsr rss saa sac sae sag sah sal sar sas sca scc sce scg sch scl scr scs se- sea sec see seg seh sel ser ses sga sgc sge sgg sgh sgl sgr sgs sh- sha shc she shg shh shl shr shs sla slc sle slg slh sll slr sls sr- sra src sre srg srh srl srr srs ss- ssa ssc sse ssg ssh ssl ssr sss