-er a-a a-c aaa aac aad aae aag aah aan aar ac- aca acc acd ace acg ach acn acr ad- ada adc add ade adg adh adn adr aea aec aed aee aeg aeh aen aer ag- aga agc agd age agg agh agn agr aha ahc ahd ahe ahg ahh ahn ahr an- ana anc and ane ang anh ann anr ar- ara arc ard are arg arh arn arr c-- caa cac cad cae cag cah can car cca ccc ccd cce ccg cch ccn ccr cda cdc cdd cde cdg cdh cdn cdr ce- cea cec ced cee ceg ceh cen cer cga cgc cgd cge cgg cgh cgn cgr ch- cha chc chd che chg chh chn chr cn- cna cnc cnd cne cng cnh cnn cnr cra crc crd cre crg crh crn crr daa dac dad dae dag dah dan dar dca dcc dcd dce dcg dcn dcr dda ddc ddd dde ddg ddh ddn ddr de- dea dec ded dee deg deh den der dga dgc dgd dge dgg dgh dgn dgr dh- dha dhc dhd dhe dhh dhr dna dnc dnd dne dng dnh dnn dnr dra drc drd dre drg drn drr eaa eac ead eae eag eah ean ear ec- eca ecc ecd ece ecg ech ecn ecr ed- eda edc edd ede edg edh edn edr eea eec eed eee eeg een eer ega egc egd ege egg egh egn egr eha ehc ehd ehe ehg ehh ehn ehr en- ena enc end ene eng enh enn enr era erc erd ere erg erh ern err g-d gaa gac gad gae gag gah gan gar gca gcc gcd gce gcg gch gcn gcr gda gdc gdd gde gdh gdn gdr ge- gea gec ged gee geg geh gen ger gga ggc ggd ggg ggh ggn ggr gha ghc ghd ghe ghg ghh ghn ghr gna gnc gnd gne gnn gnr gra grc grd gre grg grh grn grr haa hac had hae hag hah han har hca hcc hcd hce hcg hch hcn hcr hda hdc hdd hde hdg hdh hdn hdr he- hea hec hed hee heg heh hen her hga hgc hge hgg hgh hgn hgr hha hhc hhd hhe hhg hhh hhn hhr hna hnc hnd hne hng hnh hnn hr- hra hrc hrd hre hrg hrh hrn hrr naa nac nad nae nag nah nan nar nca ncc ncd nce ncg nch ncn ncr nda ndc ndd nde ndg ndh ndn ndr ne- nea nec ned nee neg neh nen ner nga ngc ngd nge ngg ngh ngn nha nhc nhd nhe nhg nhh nhn nhr nna nnc nne nng nnh nnn nra nrc nrd nre nrg nrn nrr ra- raa rac rad rae rag rah ran rar rca rcc rcd rce rcg rch rcn rcr rda rdc rdd rde rdg rdh rdn rdr re- rea rec red ree reg reh ren rer rga rgc rgd rge rgg rgh rgn rgr rh- rha rhc rhd rhe rhg rhh rhn rhr rna rnc rnd rng rnh rnn rnr rra rrc rrd rrg rrh rrn rrr