-al -ic a-a a-c a-i a-t aaa aac aag aai aal aar aas aat ac- aca acc acg aci acl acr acs act ag- aga agc agg agi agl agr ags agt ai- aia aic aig aii ail air ais ait al- ala alc alg ali all alr als alt ar- ara arc arg ari arl arr ars art as- asa asc asg asi asl asr ass ast at- ata atc atg ati atl atr ats att c-- caa cac cag cai cal car cas cat cca ccc ccg cci ccl ccr ccs cct cga cgc cgg cgi cgl cgr cgs cgt ci- cia cic cig cii cil cir cis cit cl- cla clc clg cli cll clr cls clt cra crc crg cri crl crr crs crt csa csc csg csi csl csr css cst cta ctc ctg cti ctl ctr cts ctt gaa gac gag gai gal gar gas gat gca gcc gcg gci gcl gcr gcs gct gga ggc ggg ggi ggr ggs ggt gia gic gig gii gil gir gis git gla glc glg gli gll glr gls glt gra grc grg gri grl grr grs grt gsa gsc gsg gsi gsl gsr gss gst gta gtc gtg gti gtl gtr gts gtt ia- iaa iac iag iai ial iar ias iat ica icc icg ici icl icr ics ict iga igc igg igi igl igr igs igt iia iic iii iil iir iis iit il- ila ilc ilg ili ill ilr ils ilt ir- ira irc irg iri irl irr irs irt is- isa isc isg isi isl isr iss ist ita itc itg iti itl its itt la- laa lac lag lai lal lar las lat lca lcc lcg lci lcl lcr lcs lct lga lgc lgg lgi lgl lgr lgs lgt lia lic lig lii lil lir lis lit lla llc llg lli lll llr lls llt lra lrc lrg lri lrr lrs lrt lsa lsc lsg lsi lsl lsr lss lst lta ltc ltg lti ltl ltr lts ltt ra- raa rac rag rai ral rar ras rat rca rcc rcg rci rcl rcr rcs rct rga rgc rgg rgi rgr rgs rgt ria ric rig rii ril rir ris rit rla rlc rlg rli rll rlr rls rlt rra rrc rrg rri rrl rrr rrs rrt rsa rsc rsg rsi rsl rsr rss rst rta rtc rtg rti rtl rtr rts rtt saa sac sag sai sal sar sas sat sca scc scg sci scl scr scs sct sga sgc sgg sgi sgl sgr sgs sgt sia sic sig sii sil sir sis sit sla slc slg sli sll slr sls slt sr- sra src srg sri srl srr srs srt ss- ssa ssc ssg ssi ssl ssr sss sst sta stc stg sti stl str sts stt taa tac tag tai tal tar tas tat tca tcc tcg tci tcl tcr tcs tct tga tgc tgg tgi tgl tgr tgs tgt tia tic tig tii til tir tis tit tla tlc tlg tli tll tlr tls tlt tra trc trg tri trl trr trs trt tsa tsc tsg tsi tsl tsr tss tst tta ttc ttg tti ttl ttr tts ttt