-al -er a-a a-c aaa aac aad aae aag aal aan aar ac- aca acc acd ace acg acl acn acr ad- ada adc add ade adg adl adn adr aea aec aed aee aeg ael aen aer ag- aga agc agd age agg agl agn agr al- ala alc ald ale alg all aln alr an- ana anc and ane ang anl ann anr ar- ara arc ard are arg arl arn arr c-- caa cac cad cae cag cal can car cca ccc ccd cce ccg ccl ccn ccr cda cdc cdd cde cdg cdl cdn cdr ce- cea cec ced cee ceg cel cen cer cga cgc cgd cge cgg cgl cgn cgr cl- cla clc cld cle clg cll cln clr cn- cna cnc cnd cne cng cnl cnn cnr cra crc crd cre crg crl crn crr daa dac dad dae dag dal dan dar dca dcc dcd dce dcg dcl dcn dcr dda ddc ddd dde ddg ddl ddn ddr de- dea dec ded dee deg del den der dga dgc dgd dge dgg dgl dgn dgr dl- dla dlc dld dle dlg dll dlr dna dnc dnd dne dng dnl dnn dnr dra drc drd dre drg drl drn drr eaa eac ead eae eag eal ean ear ec- eca ecc ecd ece ecg ecl ecn ecr ed- eda edc edd ede edg edl edn edr eea eec eed eee eeg eel een eer ega egc egd ege egg egl egn egr ela elc eld ele elg ell eln elr en- ena enc end ene eng enl enn enr era erc erd ere erg erl ern err g-d gaa gac gad gae gag gal gan gar gca gcc gcd gce gcg gcl gcn gcr gda gdc gdd gde gdl gdn gdr ge- gea gec ged gee geg gel gen ger gga ggc ggd ggg ggn ggr gla glc gld gle glg gll gln glr gna gnc gnd gne gnl gnn gnr gra grc grd gre grg grl grn grr la- laa lac lad lae lag lal lan lar lca lcc lcd lce lcg lcl lcn lcr lda ldc ldd lde ldg ldl ldn ldr lea lec led lee leg lel len ler lga lgc lgd lge lgg lgl lgn lgr lla llc lld lle llg lll lln llr lna lnc lnd lne lng lnl lnn lnr lra lrc lrd lrg lrn lrr naa nac nad nae nag nal nan nar nca ncc ncd nce ncg ncl ncn ncr nda ndc ndd nde ndg ndl ndn ndr ne- nea nec ned nee neg nel nen ner nga ngc ngd nge ngg ngl ngn nla nlc nld nle nlg nll nln nlr nna nnc nne nng nnl nnn nra nrc nrd nre nrg nrl nrn nrr ra- raa rac rad rae rag ral ran rar rca rcc rcd rce rcg rcl rcn rcr rda rdc rdd rde rdg rdl rdn rdr re- rea rec red ree reg rel ren rer rga rgc rgd rge rgg rgn rgr rla rlc rld rle rlg rll rln rlr rna rnc rnd rng rnn rnr rra rrc rrd rrg rrl rrn rrr