-er a-a a-c aaa aac aae aaf aag aah aan aar aas ac- aca acc ace acf acg ach acn acr acs aea aec aee aef aeg aeh aen aer aes af- afa afc afe aff afg afh afn afr afs ag- aga agc age agf agg agh agn agr ags aha ahc ahe ahf ahg ahh ahn ahr ahs an- ana anc ane anf ang anh ann anr ans ar- ara arc are arf arg arh arn arr ars as- asa asc ase asf asg ash asn asr ass c-- caa cac cae caf cag cah can car cas cca ccc cce ccf ccg cch ccn ccr ccs ce- cea cec cee cef ceg ceh cen cer ces cfa cfc cfe cff cfg cfh cfn cfr cfs cga cgc cge cgg cgh cgn cgr cgs ch- cha chc che chf chg chh chn chr chs cn- cna cnc cne cnf cng cnh cnn cnr cns cra crc cre crf crg crh crn crr crs csa csc cse csf csg csh csn csr css eaa eac eae eaf eag eah ean ear eas ec- eca ecc ece ecf ecg ech ecn ecr ecs eea eec eee eef eeg een eer ees ef- efa efc efe eff efg efh efr efs ega egc ege egf egg egh egn egr egs eha ehc ehe ehf ehg ehh ehn ehr ehs en- ena enc ene enf eng enh enn enr ens era erc ere erf erg erh ern err ers es- esa esc ese esf esg esh esn esr ess faa fac fae faf fag fah fan far fas fca fcc fce fcf fcg fcn fcr fcs fea fec fee fef feg feh fen fer fes ffa ffc ffe fff ffg ffh ffn ffr ffs fga fgc fge fgf fgg fgh fgn fgr fgs fha fhc fhe fhf fhg fhh fhn fhr fhs fna fnc fne fnf fng fnh fnn fnr fns fra frc fre frf frg frh frn frr frs fsa fsc fse fsf fsg fsh fsn fsr fss gaa gac gae gaf gag gah gan gar gas gca gcc gce gcf gcg gch gcn gcr gcs ge- gea gec gee gef geg geh gen ger ges gfa gfc gfe gff gfh gfr gfs gga ggc ggg ggh ggn ggr ggs gha ghc ghe ghg ghh ghn ghr ghs gna gnc gne gnf gnn gnr gns gra grc gre grf grg grh grn grr grs gsa gsc gse gsf gsg gsn gsr gss haa hac hae haf hag hah han har has hca hcc hce hcf hcg hch hcn hcr hcs he- hea hec hee hef heg heh hen her hes hfa hfc hfe hff hfg hfh hfn hfr hfs hga hgc hge hgf hgg hgh hgn hgr hgs hha hhc hhe hhf hhg hhh hhn hhr hhs hna hnc hne hnf hng hnh hnn hns hr- hra hrc hre hrf hrg hrh hrn hrr hrs hsa hsc hse hsf hsg hsh hsn hsr hss naa nac nae naf nag nah nan nar nas nca ncc nce ncf ncg nch ncn ncr ncs ne- nea nec nee nef neg neh nen ner nes nfa nfc nfe nff nfn nfr nfs nga ngc nge ngf ngg ngh ngn ngs nha nhc nhe nhf nhg nhh nhn nhr nhs nna nnc nne nnf nng nnh nnn nns nra nrc nre nrf nrg nrn nrr nrs nsa nsc nse nsf nsg nsh nsn nsr nss ra- raa rac rae raf rag rah ran rar ras rca rcc rce rcf rcg rch rcn rcr rcs re- rea rec ree ref reg reh ren rer res rfa rfc rfe rff rfg rfh rfn rfr rfs rga rgc rge rgf rgg rgh rgn rgr rgs rh- rha rhc rhe rhf rhg rhh rhn rhr rhs rna rnc rng rnh rnn rnr rns rra rrc rrf rrg rrh rrn rrr rrs rsa rsc rse rsf rsg rsh rsn rsr rss saa sac sae saf sag sah san sar sas sca scc sce scf scg sch scn scr scs se- sea sec see sef seg seh sen ser ses sfa sfc sfe sff sfg sfh sfn sfr sfs sga sgc sge sgf sgg sgh sgn sgr sgs sh- sha shc she shf shg shh shn shr shs sna snc sne snf sng snn snr sns sr- sra src sre srf srg srh srn srr srs ss- ssa ssc sse ssf ssg ssh ssn ssr sss