-ic a-a a-c a-i aaa aac aad aae aaf aag aai aan aas ac- aca acc acd ace acf acg aci acn acs ad- ada adc add ade adf adg adi adn ads aea aec aed aee aef aeg aei aen aes af- afa afc afd afe aff afg afi afn afs ag- aga agc agd age agf agg agi agn ags ai- aia aic aid aie aif aig aii ain ais an- ana anc and ane anf ang ani ann ans as- asa asc asd ase asf asg asi asn ass c-- caa cac cad cae caf cag cai can cas cca ccc ccd cce ccf ccg cci ccn ccs cda cdc cdd cde cdf cdg cdi cdn cds ce- cea cec ced cee cef ceg cei cen ces cfa cfc cfd cfe cff cfg cfi cfn cfs cga cgc cgd cge cgg cgi cgn cgs ci- cia cic cid cie cif cig cii cin cis cn- cna cnc cnd cne cnf cng cni cnn cns csa csc csd cse csf csg csi csn css daa dac dad dae daf dag dai dan das dca dcc dcd dce dcf dcg dci dcn dcs dda ddc ddd dde ddf ddg ddi ddn dds de- dea dec ded dee def deg dei den des dfa dfc dfd dfe dff dfg dfi dfn dfs dga dgc dgd dge dgf dgg dgi dgn dgs di- dia dic did die dif dig dii din dis dna dnc dnd dne dnf dng dni dnn dns dsa dsc dsd dse dsf dsg dsi dsn dss eaa eac ead eae eaf eag eai ean eas ec- eca ecc ecd ece ecf ecg eci ecn ecs ed- eda edc edd ede edf edg edi edn eds eea eec eed eee eef eeg een ees ef- efa efc efd efe eff efg efi efs ega egc egd ege egf egg egi egn egs eia eic eid eie eif eig eii ein eis en- ena enc end ene enf eng eni enn ens es- esa esc esd ese esf esg esi esn ess faa fac fad fae faf fag fai fan fas fca fcc fcd fce fcf fcg fci fcn fcs fda fdc fdd fde fdf fdg fdi fdn fds fea fec fed fee fef feg fei fen fes ffa ffc ffd ffe fff ffg ffi ffn ffs fga fgc fgd fge fgf fgg fgi fgn fgs fia fic fid fie fif fig fii fin fis fna fnc fnd fne fnf fng fni fnn fns fsa fsc fsd fse fsf fsg fsi fsn fss g-d gaa gac gad gae gaf gag gai gan gas gca gcc gcd gce gcf gcg gci gcn gcs gda gdc gdd gde gdf gdi gdn gds ge- gea gec ged gee gef geg gei gen ges gfa gfc gfd gfe gff gfi gfs gga ggc ggd ggg ggi ggn ggs gia gic gid gie gif gig gii gin gis gna gnc gnd gne gnf gni gnn gns gsa gsc gsd gse gsf gsg gsi gsn gss i-d i-f ia- iaa iac iad iae iaf iag iai ian ias ica icc icd ice icf icg ici icn ics ida idc idd ide idf idg idi idn ids ie- iea iec ied iee ief ieg iei ien ies ifa ifc ifd ife iff ifg ifi ifn ifs iga igc igd ige igf igg igi ign igs iia iic iid iie iif iii iin iis in- ina inc ind ine inf ing ini inn ins is- isa isc isd ise isf isg isi isn iss n-i naa nac nad nae naf nag nai nan nas nca ncc ncd nce ncf ncg nci ncn ncs nda ndc ndd nde ndf ndg ndi ndn nds ne- nea nec ned nee nef neg nei nen nes nfa nfc nfd nfe nff nfi nfn nfs nga ngc ngd nge ngf ngg ngi ngn ngs nia nic nid nie nif nig nii nin nis nna nnc nne nnf nng nni nnn nns nsa nsc nsd nse nsf nsg nsi nsn nss saa sac sad sae saf sag sai san sas sca scc scd sce scf scg sci scn scs sda sdc sdd sde sdf sdg sdi sdn sds se- sea sec sed see sef seg sei sen ses sfa sfc sfd sfe sff sfg sfi sfn sfs sga sgc sgd sge sgf sgg sgi sgn sgs sia sic sid sie sif sig sii sin sis sna snc snd sne snf sng sni snn sns ss- ssa ssc ssd sse ssf ssg ssi ssn sss