-er a-a a-c a-t aaa aac aae aag aan aap aar aat ac- aca acc ace acg acn acp acr act aea aec aee aeg aen aep aer aet ag- aga agc age agg agn agp agr agt an- ana anc ane ang ann anp anr ant ap- apa apc ape apg apn app apr apt ar- ara arc are arg arn arp arr art at- ata atc ate atg atn atp atr att c-- caa cac cae cag can cap car cat cca ccc cce ccg ccn ccp ccr cct ce- cea cec cee ceg cen cep cer cet cga cgc cge cgg cgn cgp cgr cgt cn- cna cnc cne cng cnn cnp cnr cnt cpa cpc cpe cpg cpn cpp cpr cpt cra crc cre crg crn crp crr crt cta ctc cte ctg ctn ctp ctr ctt eaa eac eae eag ean eap ear eat ec- eca ecc ece ecg ecn ecr ect eea eec eee eeg een eep eer eet ega egc ege egg egn egp egr egt en- ena enc ene eng enn enp enr ent ep- epa epc epe epg epn epp epr ept era erc ere erg ern erp err ert eta etc ete etg etn etp etr ett g-p gaa gac gae gag gan gap gar gat gca gcc gce gcg gcn gcp gcr gct ge- gea gec gee geg gen gep ger get gga ggc ggg ggn ggp ggr ggt gna gnc gne gnn gnp gnr gnt gpa gpc gpe gpg gpn gpp gpr gpt gra grc gre grg grn grp grr grt gta gtc gte gtg gtn gtp gtr gtt naa nac nae nag nan nap nar nat nca ncc nce ncg ncn ncp ncr nct ne- nea nec nee neg nen nep ner net nga ngc nge ngg ngn ngp ngt nna nnc nne nng nnn nnp nnt npa npc npe npg npn npp npr npt nra nrc nre nrg nrn nrp nrr nrt nta ntc nte ntg ntn ntp ntr ntt p-p paa pac pae pag pan pap par pat pca pcc pce pcg pcn pcp pcr pct pea pec pee peg pen pep per pet pga pgc pge pgg pgn pgp pgr pgt pn- pna pnc pne png pnn pnp pnr pnt ppa ppc ppe ppg ppn ppp ppr ppt pra prc pre prg prn prp prr prt pt- pta ptc pte ptg ptn ptp ptr ptt ra- raa rac rae rag ran rap rar rat rca rcc rce rcg rcn rcp rcr rct re- rea rec ree reg ren rep rer ret rga rgc rge rgg rgn rgp rgr rgt rna rnc rng rnn rnp rnr rnt rpa rpc rpe rpg rpn rpp rpr rpt rra rrc rrg rrn rrp rrr rrt rta rtc rte rtg rtn rtp rtr rtt taa tac tae tag tan tap tar tat tca tcc tce tcg tcn tcp tcr tct te- tea tec tee teg ten tep ter tet tga tgc tge tgg tgn tgp tgr tgt tna tnc tne tng tnn tnp tnr tnt tpa tpc tpe tpg tpn tpp tpr tpt tra trc tre trg trn trp trr trt tta ttc tte ttg ttn ttp ttr ttt