a-a a-c a-t aaa aac aaf aag aar aas aat ac- aca acc acf acg acr acs act af- afa afc aff afg afr afs aft ag- aga agc agf agg agr ags agt ar- ara arc arf arg arr ars art as- asa asc asf asg asr ass ast at- ata atc atf atg atr ats att c-- caa cac caf cag car cas cat cca ccc ccf ccg ccr ccs cct cfa cfc cff cfg cfr cfs cft cga cgc cgg cgr cgs cgt cra crc crf crg crr crs crt csa csc csf csg csr css cst cta ctc ctf ctg ctr cts ctt faa fac faf fag far fas fat fca fcc fcf fcg fcr fcs fct ffa ffc fff ffg ffr ffs fft fga fgc fgf fgg fgr fgs fgt fra frc frf frg frr frs frt fsa fsc fsf fsg fsr fss fst fta ftc ftf ftg ftr fts ftt gaa gac gaf gag gar gas gat gca gcc gcf gcg gcr gcs gct gfa gfc gff gfr gfs gft gga ggc ggg ggr ggs ggt gra grc grf grg grr grs grt gsa gsc gsf gsg gsr gss gst gta gtc gtf gtg gtr gts gtt ra- raa rac raf rag rar ras rat rca rcc rcf rcg rcr rcs rct rfa rfc rff rfg rfr rfs rft rga rgc rgf rgg rgr rgs rgt rra rrc rrf rrg rrr rrs rrt rsa rsc rsf rsg rsr rss rst rta rtc rtf rtg rtr rts rtt saa sac saf sag sar sas sat sca scc scf scg scr scs sct sfa sfc sff sfg sfr sfs sft sga sgc sgf sgg sgr sgs sgt sr- sra src srf srg srr srs srt ss- ssa ssc ssf ssg ssr sss sst sta stc stf stg str sts stt taa tac taf tag tar tas tat tca tcc tcf tcg tcr tcs tct tfa tfc tff tfg tfr tfs tft tga tgc tgf tgg tgr tgs tgt tra trc trf trg trr trs trt tsa tsc tsf tsg tsr tss tst tta ttc ttf ttg ttr tts ttt