-al a-a a-c aaa aac aad aae aag aal aan ac- aca acc acd ace acg acl acn ad- ada adc add ade adg adl adn aea aec aed aee aeg ael aen ag- aga agc agd age agg agl agn al- ala alc ald ale alg all aln an- ana anc and ane ang anl ann c-- caa cac cad cae cag cal can cca ccc ccd cce ccg ccl ccn cda cdc cdd cde cdg cdl cdn ce- cea cec ced cee ceg cel cen cga cgc cgd cge cgg cgl cgn cl- cla clc cld cle clg cll cln cn- cna cnc cnd cne cng cnl cnn daa dac dad dae dag dal dan dca dcc dcd dce dcg dcl dcn dda ddc ddd dde ddg ddl ddn de- dea dec ded dee deg del den dga dgc dgd dge dgg dgl dgn dl- dla dlc dld dle dlg dll dna dnc dnd dne dng dnl dnn eaa eac ead eae eag eal ean ec- eca ecc ecd ece ecg ecl ecn ed- eda edc edd ede edg edl edn eea eec eed eee eeg eel een ega egc egd ege egg egl egn ela elc eld ele elg ell eln en- ena enc end ene eng enl enn g-d gaa gac gad gae gag gal gan gca gcc gcd gce gcg gcl gcn gda gdc gdd gde gdl gdn ge- gea gec ged gee geg gel gen gga ggc ggd ggg ggn gla glc gld gle glg gll gln gna gnc gnd gne gnl gnn la- laa lac lad lae lag lal lan lca lcc lcd lce lcg lcl lcn lda ldc ldd lde ldg ldl ldn lea lec led lee leg lel len lga lgc lgd lge lgg lgl lgn lla llc lld lle llg lll lln lna lnc lnd lne lng lnl lnn naa nac nad nae nag nal nan nca ncc ncd nce ncg ncl ncn nda ndc ndd nde ndg ndl ndn ne- nea nec ned nee neg nel nen nga ngc ngd nge ngg ngl ngn nla nlc nld nle nlg nll nln nna nnc nne nng nnl nnn