-ic a-a a-c a-i a-t aaa aac aag aai aar aas aat ac- aca acc acg aci acr acs act ag- aga agc agg agi agr ags agt ai- aia aic aig aii air ais ait ar- ara arc arg ari arr ars art as- asa asc asg asi asr ass ast at- ata atc atg ati atr ats att c-- caa cac cag cai car cas cat cca ccc ccg cci ccr ccs cct cga cgc cgg cgi cgr cgs cgt ci- cia cic cig cii cir cis cit cra crc crg cri crr crs crt csa csc csg csi csr css cst cta ctc ctg cti ctr cts ctt gaa gac gag gai gar gas gat gca gcc gcg gci gcr gcs gct gga ggc ggg ggi ggr ggs ggt gia gic gig gii gir gis git gra grc grg gri grr grs grt gsa gsc gsg gsi gsr gss gst gta gtc gtg gti gtr gts gtt ia- iaa iac iag iai iar ias iat ica icc icg ici icr ics ict iga igc igg igi igr igs igt iia iic iii iir iis iit ir- ira irc irg iri irr irs irt is- isa isc isg isi isr iss ist ita itc itg iti its itt ra- raa rac rag rai rar ras rat rca rcc rcg rci rcr rcs rct rga rgc rgg rgi rgr rgs rgt ria ric rig rii rir ris rit rra rrc rrg rri rrr rrs rrt rsa rsc rsg rsi rsr rss rst rta rtc rtg rti rtr rts rtt saa sac sag sai sar sas sat sca scc scg sci scr scs sct sga sgc sgg sgi sgr sgs sgt sia sic sig sii sir sis sit sr- sra src srg sri srr srs srt ss- ssa ssc ssg ssi ssr sss sst sta stc stg sti str sts stt taa tac tag tai tar tas tat tca tcc tcg tci tcr tcs tct tga tgc tgg tgi tgr tgs tgt tia tic tig tii tir tis tit tra trc trg tri trr trs trt tsa tsc tsg tsi tsr tss tst tta ttc ttg tti ttr tts ttt