-al -er a-a a-c a-t aaa aac aad aae aag aal aar aas aat aau ac- aca acc acd ace acg acl acr acs act acu ad- ada adc add ade adg adl adr ads adt adu aea aec aed aee aeg ael aer aes aet aeu ag- aga agc agd age agg agl agr ags agt agu al- ala alc ald ale alg all alr als alt alu ar- ara arc ard are arg arl arr ars art aru as- asa asc asd ase asg asl asr ass ast asu at- ata atc atd ate atg atl atr ats att atu au- aua auc aud aue aug aul aur aus aut c-- caa cac cad cae cag cal car cas cat cau cca ccc ccd cce ccg ccl ccr ccs cct ccu cda cdc cdd cde cdg cdl cdr cds cdt cdu ce- cea cec ced cee ceg cel cer ces cet ceu cga cgc cgd cge cgg cgl cgr cgs cgt cgu cl- cla clc cld cle clg cll clr cls clt clu cra crc crd cre crg crl crr crs crt cru csa csc csd cse csg csl csr css cst csu cta ctc ctd cte ctg ctl ctr cts ctt ctu cua cuc cud cue cug cul cur cus cut cuu daa dac dad dae dag dal dar das dat dau dca dcc dcd dce dcg dcl dcr dcs dct dcu dda ddc ddd dde ddg ddl ddr dds ddt ddu de- dea dec ded dee deg del der des det deu dga dgc dgd dge dgg dgl dgr dgs dgt dgu dl- dla dlc dld dle dlg dll dlr dls dlt dlu dra drc drd dre drg drl drr drs drt dru dsa dsc dsd dse dsg dsl dsr dss dst dsu dta dtc dtd dte dtg dtl dtr dts dtt dtu dua duc dud due dug dul dur dus dut eaa eac ead eae eag eal ear eas eat eau ec- eca ecc ecd ece ecg ecl ecr ecs ect ecu ed- eda edc edd ede edg edl edr eds edt edu eea eec eed eee eeg eel eer ees eet ega egc egd ege egg egl egr egs egt egu ela elc eld ele elg ell elr els elt elu era erc erd ere erg erl err ers ert eru es- esa esc esd ese esg esl esr ess est esu eta etc etd ete etg etl etr ets ett etu eu- eua euc eud eue eug eul eur eus eut g-d gaa gac gad gae gag gal gar gas gat gau gca gcc gcd gce gcg gcl gcr gcs gct gcu gda gdc gdd gde gdl gdr gds gdt gdu ge- gea gec ged gee geg gel ger ges get geu gga ggc ggd ggg ggr ggs ggt ggu gla glc gld gle glg gll glr gls glt glu gra grc grd gre grg grl grr grs grt gru gsa gsc gsd gse gsg gsl gsr gss gst gsu gta gtc gtd gte gtg gtl gtr gts gtt gtu gu- gua guc gud gue gug gul gur gus gut guu la- laa lac lad lae lag lal lar las lat lau lca lcc lcd lce lcg lcl lcr lcs lct lcu lda ldc ldd lde ldg ldl ldr lds ldt ldu lea lec led lee leg lel ler les let leu lga lgc lgd lge lgg lgl lgr lgs lgt lgu lla llc lld lle llg lll llr lls llt llu lra lrc lrd lrg lrr lrs lrt lru lsa lsc lsd lse lsg lsl lsr lss lst lsu lta ltc ltd lte ltg ltl ltr lts ltt ltu lua luc lud lue lug lul lur lus lut luu ra- raa rac rad rae rag ral rar ras rat rau rca rcc rcd rce rcg rcl rcr rcs rct rcu rda rdc rdd rde rdg rdl rdr rds rdt rdu re- rea rec red ree reg rel rer res ret reu rga rgc rgd rge rgg rgr rgs rgt rla rlc rld rle rlg rll rlr rls rlt rlu rra rrc rrd rrg rrl rrr rrs rrt rru rsa rsc rsd rse rsg rsl rsr rss rst rsu rta rtc rtd rte rtg rtl rtr rts rtt rtu rua ruc rud rue rug rur rus rut ruu saa sac sad sae sag sal sar sas sat sau sca scc scd sce scg scl scr scs sct scu sda sdc sdd sde sdg sdl sdr sds sdt sdu se- sea sec sed see seg sel ser ses set seu sga sgc sgd sge sgg sgl sgr sgs sgt sgu sla slc sld sle slg sll slr sls slt slu sr- sra src srd sre srg srl srr srs srt ss- ssa ssc ssd sse ssg ssl ssr sss sst ssu sta stc std ste stg stl str sts stt stu sua suc sud sue sug sul sur sus sut suu taa tac tad tae tag tal tar tas tat tau tca tcc tcd tce tcg tcl tcr tcs tct tcu tda tdc tdd tde tdg tdl tdr tds tdt tdu te- tea tec ted tee teg tel ter tes tet teu tga tgc tge tgg tgl tgr tgs tgt tgu tla tlc tld tle tlg tll tlr tls tlt tlu tra trc trd tre trg trl trr trs trt tru tsa tsc tsd tse tsg tsl tsr tss tst tsu tta ttc ttd tte ttg ttl ttr tts ttt ttu tua tuc tud tue tug tul tur tus tut tuu ua- uaa uac uad uae uag ual uar uas uat uau uca ucc ucd uce ucg ucl ucr ucs uct ucu uda udc udd ude udg udl udr uds udt udu uea uec ued uee ueg uel uer ues uet uga ugc uge ugg ugl ugr ugs ugt ugu ula ulc uld ule ulg ull ulr uls ult ulu ur- ura urc urd ure urg url urr urs urt uru usa usc usd use usg usl usr uss ust usu uta utc utd