-ic a-a a-c a-i a-t aaa aac aag aai aar aas aat aau ac- aca acc acg aci acr acs act acu ag- aga agc agg agi agr ags agt agu ai- aia aic aig aii air ais ait aiu ar- ara arc arg ari arr ars art aru as- asa asc asg asi asr ass ast asu at- ata atc atg ati atr ats att atu au- aua auc aug aui aur aus aut c-- caa cac cag cai car cas cat cau cca ccc ccg cci ccr ccs cct ccu cga cgc cgg cgi cgr cgs cgt cgu ci- cia cic cig cii cir cis cit ciu cra crc crg cri crr crs crt cru csa csc csg csi csr css cst csu cta ctc ctg cti ctr cts ctt ctu cua cuc cug cui cur cus cut cuu gaa gac gag gai gar gas gat gau gca gcc gcg gci gcr gcs gct gcu gga ggc ggg ggi ggr ggs ggt ggu gia gic gig gii gir gis git giu gra grc grg gri grr grs grt gru gsa gsc gsg gsi gsr gss gst gsu gta gtc gtg gti gtr gts gtt gtu gu- gua guc gug gui gur gus gut guu ia- iaa iac iag iai iar ias iat iau ica icc icg ici icr ics ict icu iga igc igg igi igr igs igt igu iia iic iii iir iis iit iiu ir- ira irc irg iri irr irs irt iru is- isa isc isg isi isr iss ist isu ita itc itg iti its itt itu iu- iua iuc iug iui iur ius iut ra- raa rac rag rai rar ras rat rau rca rcc rcg rci rcr rcs rct rcu rga rgc rgg rgi rgr rgs rgt ria ric rig rii rir ris rit rra rrc rrg rri rrr rrs rrt rru rsa rsc rsg rsi rsr rss rst rsu rta rtc rtg rti rtr rts rtt rtu rua ruc rug rui rur rus rut ruu saa sac sag sai sar sas sat sau sca scc scg sci scr scs sct scu sga sgc sgg sgi sgr sgs sgt sgu sia sic sig sii sir sis sit siu sr- sra src srg sri srr srs srt ss- ssa ssc ssg ssi ssr sss sst ssu sta stc stg sti str sts stt stu sua suc sug sui sur sus sut suu taa tac tag tai tar tas tat tau tca tcc tcg tci tcr tcs tct tcu tga tgc tgg tgi tgr tgs tgt tgu tia tic tig tii tir tis tit tiu tra trc trg tri trr trs trt tru tsa tsc tsg tsi tsr tss tst tsu tta ttc ttg tti ttr tts ttt ttu tua tuc tug tui tur tus tut tuu ua- uaa uac uag uai uar uas uat uau uca ucc ucg uci ucr ucs uct ucu uga ugc ugg ugi ugr ugs ugt ugu uia uic uig uii uir uis uit uiu ur- ura urc urg uri urr urs urt uru usa usc usg usi usr uss ust usu uta utc uti utr uts utt utu uua uuc uug uur uus uut uuu