-er -ic a-a a-c a-i a-t aaa aac aad aae aag aai aar aas aat aau ac- aca acc acd ace acg aci acr acs act acu ad- ada adc add ade adg adi adr ads adt adu aea aec aed aee aeg aei aer aes aet aeu ag- aga agc agd age agg agi agr ags agt agu ai- aia aic aid aie aig aii air ais ait aiu ar- ara arc ard are arg ari arr ars art aru as- asa asc asd ase asg asi asr ass ast asu at- ata atc atd ate atg ati atr ats att atu au- aua auc aud aue aug aui aur aus aut c-- caa cac cad cae cag cai car cas cat cau cca ccc ccd cce ccg cci ccr ccs cct ccu cda cdc cdd cde cdg cdi cdr cds cdt cdu ce- cea cec ced cee ceg cei cer ces cet ceu cga cgc cgd cge cgg cgi cgr cgs cgt cgu ci- cia cic cid cie cig cii cir cis cit ciu cra crc crd cre crg cri crr crs crt cru csa csc csd cse csg csi csr css cst csu cta ctc ctd cte ctg cti ctr cts ctt ctu cua cuc cud cue cug cui cur cus cut cuu daa dac dad dae dag dai dar das dat dau dca dcc dcd dce dcg dci dcr dcs dct dcu dda ddc ddd dde ddg ddi ddr dds ddt ddu de- dea dec ded dee deg dei der des det deu dga dgc dgd dge dgg dgi dgr dgs dgt dgu di- dia dic did die dig dii dir dis dit diu dra drc drd dre drg dri drr drs drt dru dsa dsc dsd dse dsg dsi dsr dss dst dsu dta dtc dtd dte dtg dti dtr dts dtt dtu dua duc dud due dug dui dur dus dut eaa eac ead eae eag eai ear eas eat eau ec- eca ecc ecd ece ecg eci ecr ecs ect ecu ed- eda edc edd ede edg edi edr eds edt edu eea eec eed eee eeg eer ees eet ega egc egd ege egg egi egr egs egt egu eia eic eid eie eig eii eir eis eit eiu era erc erd ere erg eri err ers ert eru es- esa esc esd ese esg esi esr ess est esu eta etc etd ete etg eti etr ets ett etu eu- eua euc eud eue eug eui eur eus eut g-d gaa gac gad gae gag gai gar gas gat gau gca gcc gcd gce gcg gci gcr gcs gct gcu gda gdc gdd gde gdi gdr gds gdt gdu ge- gea gec ged gee geg gei ger ges get geu gga ggc ggd ggg ggi ggr ggs ggt ggu gia gic gid gie gig gii gir gis git giu gra grc grd gre grg gri grr grs grt gru gsa gsc gsd gse gsg gsi gsr gss gst gsu gta gtc gtd gte gtg gti gtr gts gtt gtu gu- gua guc gud gue gug gui gur gus gut guu i-d ia- iaa iac iad iae iag iai iar ias iat iau ica icc icd ice icg ici icr ics ict icu ida idc idd ide idg idi idr ids idt idu ie- iea iec ied iee ieg iei ier ies iet iga igc igd ige igg igi igr igs igt igu iia iic iid iie iii iir iis iit iiu ir- ira irc ird ire irg iri irr irs irt iru is- isa isc isd ise isg isi isr iss ist isu ita itc itd ite itg iti its itt itu iu- iua iuc iud iue iug iui iur ius iut ra- raa rac rad rae rag rai rar ras rat rau rca rcc rcd rce rcg rci rcr rcs rct rcu rda rdc rdd rde rdg rdi rdr rds rdt rdu re- rea rec red ree reg rei rer res ret reu rga rgc rgd rge rgg rgi rgr rgs rgt ria ric rid rie rig rii rir ris rit rra rrc rrd rrg rri rrr rrs rrt rru rsa rsc rsd rse rsg rsi rsr rss rst rsu rta rtc rtd rte rtg rti rtr rts rtt rtu rua ruc rud rue rug rui rur rus rut ruu saa sac sad sae sag sai sar sas sat sau sca scc scd sce scg sci scr scs sct scu sda sdc sdd sde sdg sdi sdr sds sdt sdu se- sea sec sed see seg sei ser ses set seu sga sgc sgd sge sgg sgi sgr sgs sgt sgu sia sic sid sie sig sii sir sis sit siu sr- sra src srd sre srg sri srr srs srt ss- ssa ssc ssd sse ssg ssi ssr sss sst ssu sta stc std ste stg sti str sts stt stu sua suc sud sue sug sui sur sus sut suu taa tac tad tae tag tai tar tas tat tau tca tcc tcd tce tcg tci tcr tcs tct tcu tda tdc tdd tde tdg tdi tdr tds tdt tdu te- tea tec ted tee teg tei ter tes tet teu tga tgc tge tgg tgi tgr tgs tgt tgu tia tic tid tie tig tii tir tis tit tiu tra trc trd tre trg tri trr trs trt tru tsa tsc tsd tse tsg tsi tsr tss tst tsu tta ttc ttd tte ttg tti ttr tts ttt ttu tua tuc tud tue tug tui tur tus tut tuu ua- uaa uac uad uae uag uai uar uas uat uau uca ucc ucd uce ucg uci ucr ucs uct ucu uda udc udd ude udg udi udr uds udt udu uea uec ued uee ueg uei uer ues uet uga ugc uge ugg ugi ugr ugs ugt ugu uia uic uid uie uig uii uir uis uit uiu ur- ura urc urd ure urg uri urr urs urt uru usa usc usd use usg usi usr uss