a-a a-c a-t aaa aac aae aag aak aao aas aat ac- aca acc ace acg ack aco acs act aea aec aee aeg aek aeo aes aet ag- aga agc age agg agk ago ags agt aka akc ake akg akk ako aks aoa aoc aoe aog aok aoo aos aot as- asa asc ase asg ask aso ass ast at- ata atc ate atg ato ats att c-- caa cac cae cag cak cao cas cat cca ccc cce ccg cck cco ccs cct ce- cea cec cee ceg cek ceo ces cet cga cgc cge cgg cgo cgs cgt cka ckc cko cks ckt co- coa coc coe cog cok coo cos cot csa csc cse csg csk cso css cst cta ctc cte ctg ctk cto cts ctt eaa eac eae eag eak eao eas eat ec- eca ecc ece ecg eck eco ecs ect eea eec eee eeg eek eeo ees eet ega egc ege egg ego egs egt eka ekc eke ekg eko eks ekt eo- eoa eoc eoe eog eok eoo eos eot es- esa esc ese esg esk eso ess est eta etc ete etg etk eto ets ett gaa gac gae gag gak gao gas gat gca gcc gce gcg gck gco gcs gct ge- gea gec gee geg gek geo ges get gga ggc ggg ggo ggs ggt gka gko gks gkt goa goc goe gog gok goo gos got gsa gsc gse gsg gsk gso gss gst gta gtc gte gtg gtk gto gts gtt k-t ka- kaa kac kae kag kak kao kas kat kca kcc kce kcg kck kcs kct ke- kea kec kee keg kek keo kes ket kga kgc kgo kgs kkc kke kkk kks kkt koa koc koe kog kok koo kos kot ksa ksc kse ksg ksk kso kss kst kta ktc kte ktg ktk kto kts ktt oaa oac oae oag oak oao oas oat oc- oca occ ocg ock oco ocs oct oea oec oee oeg oeo oes oet oga ogc oge ogg ogo ogs ogt oka okc oke okg okk oko oks oo- ooa ooc oog ook ooo oos oot os- osa osc ose osg osk oso oss ost ot- ota otc ote otg otk oto ots ott saa sac sae sag sak sao sas sat sca scc sce scg sck sco scs sct se- sea sec see seg sek seo ses set sga sgc sge sgg sgk sgo sgs sgt sk- ska skc ske skg skk sko sks skt soa soc soe sog sok soo sos sot ss- ssa ssc sse ssg ssk sso sss sst sta stc ste stg stk sto sts stt taa tac tae tag tak tao tas tat tca tcc tce tcg tck tco tcs tct te- tea tec tee teg tek teo tes tet tga tgc tge tgg tgk tgo tgs tgt tka tkc tke tkg tkk tko tks tkt to- toa toc toe tog tok too tos tot tsa tsc tse tsg tsk tso tss tst tta ttc tte ttg ttk tto tts ttt