-al a-a a-c a-t aaa aac aaf aag aal aan aar aat ac- aca acc acf acg acl acn acr act af- afa afc aff afg afl afn afr aft ag- aga agc agf agg agl agn agr agt al- ala alc alf alg all aln alr alt an- ana anc anf ang anl ann anr ant ar- ara arc arf arg arl arn arr art at- ata atc atf atg atl atn atr att c-- caa cac caf cag cal can car cat cca ccc ccf ccg ccl ccn ccr cct cfa cfc cff cfg cfl cfn cfr cft cga cgc cgg cgl cgn cgr cgt cl- cla clc clf clg cll cln clr clt cn- cna cnc cnf cng cnl cnn cnr cnt cra crc crf crg crl crn crr crt cta ctc ctf ctg ctl ctn ctr ctt faa fac faf fag fal fan far fat fca fcc fcf fcg fcl fcn fcr fct ffa ffc fff ffg ffl ffn ffr fft fga fgc fgf fgg fgl fgn fgr fgt fla flc flf flg fll fln flr flt fna fnc fnf fng fnl fnn fnr fnt fra frc frf frg frl frn frr frt fta ftc ftf ftg ftl ftn ftr ftt gaa gac gaf gag gal gan gar gat gca gcc gcf gcg gcl gcn gcr gct gfa gfc gff gfl gfr gft gga ggc ggg ggn ggr ggt gla glc glf glg gll gln glr glt gna gnc gnf gnl gnn gnr gnt gra grc grf grg grl grn grr grt gta gtc gtf gtg gtl gtn gtr gtt la- laa lac laf lag lal lan lar lat lca lcc lcf lcg lcl lcn lcr lct lfa lfc lff lfg lfl lfn lfr lft lga lgc lgf lgg lgl lgn lgr lgt lla llc llf llg lll lln llr llt lna lnc lng lnl lnn lnr lnt lra lrc lrf lrg lrn lrr lrt lta ltc ltf ltg ltl ltr ltt naa nac naf nag nal nan nar nat nca ncc ncf ncg ncl ncn ncr nct nfa nfc nff nfl nfn nfr nft nga ngc ngf ngg ngl ngn ngt nla nlc nlf nlg nll nln nlr nlt nna nnc nnf nng nnl nnn nnt nra nrc nrf nrg nrl nrn nrr nrt nta ntc ntf ntg ntn ntr ntt ra- raa rac raf rag ral ran rar rat rca rcc rcf rcg rcl rcn rcr rct rfa rfc rff rfg rfl rfn rfr rft rga rgc rgf rgg rgn rgr rgt rla rlc rlf rlg rll rln rlr rlt rna rnc rng rnn rnr rnt rra rrc rrf rrg rrl rrn rrr rrt rta rtc rtf rtg rtl rtn rtr rtt taa tac taf tag tal tan tar tat tca tcc tcf tcg tcl tcn tcr tct tfa tfc tff tfg tfl tfn tfr tft tga tgc tgf tgg tgl tgn tgr tgt tla tlc tlf tlg tll tln tlr tlt tna tnc tnf tng tnl tnn tnr tnt tra trc trf trg trl trn trr trt tta ttc ttf ttg ttl ttn ttr ttt