a-a a-c aaa aac aad aae aag aan aas ac- aca acc acd ace acg acn acs ad- ada adc add ade adg adn ads aea aec aed aee aeg aen aes ag- aga agc agd age agg agn ags an- ana anc and ane ang ann ans as- asa asc asd ase asg asn ass c-- caa cac cad cae cag can cas cca ccc ccd cce ccg ccn ccs cda cdc cdd cde cdg cdn cds ce- cea cec ced cee ceg cen ces cga cgc cgd cge cgg cgn cgs cn- cna cnc cnd cne cng cnn cns csa csc csd cse csg csn css daa dac dad dae dag dan das dca dcc dcd dce dcg dcn dcs dda ddc ddd dde ddg ddn dds de- dea dec ded dee deg den des dga dgc dgd dge dgg dgn dgs dna dnc dnd dne dng dnn dns dsa dsc dsd dse dsg dsn dss eaa eac ead eae eag ean eas ec- eca ecc ecd ece ecg ecn ecs ed- eda edc edd ede edg edn eds eea eec eed eee eeg een ees ega egc egd ege egg egn egs en- ena enc end ene eng enn ens es- esa esc esd ese esg esn ess g-d gaa gac gad gae gag gan gas gca gcc gcd gce gcg gcn gcs gda gdc gdd gde gdn gds ge- gea gec ged gee geg gen ges gga ggc ggd ggg ggn ggs gna gnc gnd gne gnn gns gsa gsc gsd gse gsg gsn gss naa nac nad nae nag nan nas nca ncc ncd nce ncg ncn ncs nda ndc ndd nde ndg ndn nds ne- nea nec ned nee neg nen nes nga ngc ngd nge ngg ngn ngs nna nnc nne nng nnn nns nsa nsc nsd nse nsg nsn nss saa sac sad sae sag san sas sca scc scd sce scg scn scs sda sdc sdd sde sdg sdn sds se- sea sec sed see seg sen ses sga sgc sgd sge sgg sgn sgs sna snc snd sne sng snn sns ss- ssa ssc ssd sse ssg ssn sss