-ic a-a a-c a-i aaa aac aad aae aag aai aan aas ac- aca acc acd ace acg aci acn acs ad- ada adc add ade adg adi adn ads aea aec aed aee aeg aei aen aes ag- aga agc agd age agg agi agn ags ai- aia aic aid aie aig aii ain ais an- ana anc and ane ang ani ann ans as- asa asc asd ase asg asi asn ass c-- caa cac cad cae cag cai can cas cca ccc ccd cce ccg cci ccn ccs cda cdc cdd cde cdg cdi cdn cds ce- cea cec ced cee ceg cei cen ces cga cgc cgd cge cgg cgi cgn cgs ci- cia cic cid cie cig cii cin cis cn- cna cnc cnd cne cng cni cnn cns csa csc csd cse csg csi csn css daa dac dad dae dag dai dan das dca dcc dcd dce dcg dci dcn dcs dda ddc ddd dde ddg ddi ddn dds de- dea dec ded dee deg dei den des dga dgc dgd dge dgg dgi dgn dgs di- dia dic did die dig dii din dis dna dnc dnd dne dng dni dnn dns dsa dsc dsd dse dsg dsi dsn dss eaa eac ead eae eag eai ean eas ec- eca ecc ecd ece ecg eci ecn ecs ed- eda edc edd ede edg edi edn eds eea eec eed eee eeg een ees ega egc egd ege egg egi egn egs eia eic eid eie eig eii ein eis en- ena enc end ene eng eni enn ens es- esa esc esd ese esg esi esn ess g-d gaa gac gad gae gag gai gan gas gca gcc gcd gce gcg gci gcn gcs gda gdc gdd gde gdi gdn gds ge- gea gec ged gee geg gei gen ges gga ggc ggd ggg ggi ggn ggs gia gic gid gie gig gii gin gis gna gnc gnd gne gni gnn gns gsa gsc gsd gse gsg gsi gsn gss i-d ia- iaa iac iad iae iag iai ian ias ica icc icd ice icg ici icn ics ida idc idd ide idg idi idn ids ie- iea iec ied iee ieg iei ien ies iga igc igd ige igg igi ign igs iia iic iid iie iii iin iis in- ina inc ind ine ing ini inn ins is- isa isc isd ise isg isi isn iss n-i naa nac nad nae nag nai nan nas nca ncc ncd nce ncg nci ncn ncs nda ndc ndd nde ndg ndi ndn nds ne- nea nec ned nee neg nei nen nes nga ngc ngd nge ngg ngi ngn ngs nia nic nid nie nig nii nin nis nna nnc nne nng nni nnn nns nsa nsc nsd nse nsg nsi nsn nss saa sac sad sae sag sai san sas sca scc scd sce scg sci scn scs sda sdc sdd sde sdg sdi sdn sds se- sea sec sed see seg sei sen ses sga sgc sgd sge sgg sgi sgn sgs sia sic sid sie sig sii sin sis sna snc snd sne sng sni snn sns ss- ssa ssc ssd sse ssg ssi ssn sss