a-a a-c a-t aaa aac aad aaf aag aao aas aat ac- aca acc acd acf acg aco acs act ad- ada adc add adf adg ado ads adt af- afa afc afd aff afg afo afs aft ag- aga agc agd agf agg ago ags agt aoa aoc aod aof aog aoo aos aot as- asa asc asd asf asg aso ass ast at- ata atc atd atf atg ato ats att c-- caa cac cad caf cag cao cas cat cca ccc ccd ccf ccg cco ccs cct cda cdc cdd cdf cdg cdo cds cdt cfa cfc cfd cff cfg cfo cfs cft cga cgc cgd cgg cgo cgs cgt co- coa coc cod cof cog coo cos cot csa csc csd csf csg cso css cst cta ctc ctd ctf ctg cto cts ctt daa dac dad daf dag dao das dat dca dcc dcd dcf dcg dco dcs dct dda ddc ddd ddf ddg ddo dds ddt dfa dfc dfd dff dfg dfo dfs dft dga dgc dgd dgf dgg dgs dgt doa doc dod dof dog doo dos dot dsa dsc dsd dsf dsg dso dss dst dta dtc dtd dtf dtg dto dts dtt faa fac fad faf fag fao fas fat fca fcc fcd fcf fcg fco fcs fct fda fdc fdd fdf fdg fdo fds fdt ffa ffc ffd fff ffg ffo ffs fft fga fgc fgd fgf fgg fgs fgt foa foc fof fog foo fos fot fsa fsc fsd fsf fsg fso fss fst fta ftc ftd ftf ftg fto fts ftt g-d gaa gac gad gaf gag gao gas gat gca gcc gcd gcf gcg gco gcs gct gda gdc gdd gdf gdo gds gdt gfa gfc gfd gff gfo gfs gft gga ggc ggd ggg ggo ggs ggt goa goc god gof gog goo gos got gsa gsc gsd gsf gsg gso gss gst gta gtc gtd gtf gtg gto gts gtt oaa oac oad oaf oag oao oas oat oc- oca occ ocd ocf ocg oco ocs oct oda odc odd odf odg odo ods odt of- ofa ofc ofd off ofg ofo ofs oft oga ogc ogd ogf ogg ogo ogs ogt oo- ooa ooc ood oof oog ooo oos oot os- osa osc osd osf osg oso oss ost ot- ota otc otd otf otg oto ots ott saa sac sad saf sag sao sas sat sca scc scd scf scg sco scs sct sda sdc sdd sdf sdg sdo sds sdt sfa sfc sfd sff sfg sfo sfs sft sga sgc sgd sgf sgg sgo sgs sgt soa soc sod sof sog soo sos sot ss- ssa ssc ssd ssf ssg sso sss sst sta stc std stf stg sto sts stt taa tac tad taf tag tao tas tat tca tcc tcd tcf tcg tco tcs tct tda tdc tdd tdf tdg tdo tds tdt tfa tfc tfd tff tfg tfo tfs tft tga tgc tgf tgg tgo tgs tgt to- toa toc tod tof tog too tos tot tsa tsc tsd tsf tsg tso tss tst tta ttc ttd ttf ttg tto tts ttt