-er a-a a-c a-t aaa aac aad aae aaf aag aao aar aat aau ac- aca acc acd ace acf acg aco acr act acu ad- ada adc add ade adf adg ado adr adt adu aea aec aed aee aef aeg aeo aer aet aeu af- afa afc afd afe aff afg afo afr aft afu ag- aga agc agd age agf agg ago agr agt agu aoa aoc aod aoe aof aog aoo aor aot aou ar- ara arc ard are arf arg aro arr art aru at- ata atc atd ate atf atg ato atr att atu au- aua auc aud aue auf aug auo aur aut c-- caa cac cad cae caf cag cao car cat cau cca ccc ccd cce ccf ccg cco ccr cct ccu cda cdc cdd cde cdf cdg cdo cdr cdt cdu ce- cea cec ced cee cef ceg ceo cer cet ceu cfa cfc cfd cfe cff cfg cfo cfr cft cfu cga cgc cgd cge cgg cgo cgr cgt cgu co- coa coc cod coe cof cog coo cor cot cou cra crc crd cre crf crg cro crr crt cru cta ctc ctd cte ctf ctg cto ctr ctt ctu cua cuc cud cue cuf cug cuo cur cut cuu daa dac dad dae daf dag dao dar dat dau dca dcc dcd dce dcf dcg dco dcr dct dcu dda ddc ddd dde ddf ddg ddo ddr ddt ddu de- dea dec ded dee def deg deo der det deu dfa dfc dfd dfe dff dfg dfo dfr dft dfu dga dgc dgd dge dgf dgg dgr dgt dgu doa doc dod doe dof dog doo dor dot dou dra drc drd dre drg dro drr drt dru dta dtc dtd dte dtf dtg dto dtr dtt dtu dua duc dud due duf dug duo dur dut eaa eac ead eae eaf eag eao ear eat eau ec- eca ecc ecd ece ecf ecg eco ecr ect ecu ed- eda edc edd ede edf edg edo edr edt edu eea eec eed eee eef eeg eeo eer eet ef- efa efc efd efe eff efg efo efr eft ega egc egd ege egf egg ego egr egt egu eo- eoa eoc eod eoe eof eog eoo eor eot eou era erc erd ere erf erg ero err ert eru eta etc etd ete etf etg eto etr ett etu eu- eua euc eud eue euf eug eur eut faa fac fad fae faf fag fao far fat fau fca fcc fcd fce fcf fcg fco fcr fct fcu fda fdc fdd fde fdf fdg fdo fdr fdt fdu fea fec fed fee fef feg feo fer fet feu ffa ffc ffd ffe fff ffg ffo ffr fft ffu fga fgc fgd fge fgf fgg fgr fgt foa foc foe fof fog foo for fot fou fra frc frd fre frf frg fro frr frt fru fta ftc ftd fte ftf ftg fto ftr ftt ftu fua fud fue fuf fug fuo fur fut fuu g-d gaa gac gad gae gaf gag gao gar gat gau gca gcc gcd gce gcf gcg gco gcr gct gcu gda gdc gdd gde gdf gdo gdr gdt gdu ge- gea gec ged gee gef geg geo ger get geu gfa gfc gfd gfe gff gfo gfr gft gga ggc ggd ggg ggo ggr ggt ggu goa goc god goe gof gog goo gor got gou gra grc grd gre grf grg gro grr grt gru gta gtc gtd gte gtf gtg gto gtr gtt gtu gu- gua guc gud gue guf gug guo gur gut guu oaa oac oad oae oaf oag oao oar oat oau oc- oca occ ocd ocf ocg oco ocr oct ocu oda odc odd ode odf odg odo odr odt odu oea oec oed oee oef oeg oeo oer oet of- ofa ofc ofd ofe off ofg ofo ofr oft ofu oga ogc ogd oge ogf ogg ogo ogt oo- ooa ooc ood oof oog ooo oor oot or- ora orc ord ore orf org oro orr ort oru ot- ota otc otd ote otf otg oto otr ott otu ou- oua ouc oud oue ouf ouo our out ra- raa rac rad rae raf rag rao rar rat rau rca rcc rcd rce rcf rcg rco rcr rct rcu rda rdc rdd rde rdf rdg rdo rdr rdt rdu re- rea rec red ree ref reg reo rer ret reu rfa rfc rfd rfe rff rfg rfo rfr rft rfu rga rgc rgd rge rgf rgg rgo rgr rgt roa roc rod roe rof rog roo ror rot rou rra rrc rrd rrf rrg rrr rrt rru rta rtc rtd rte rtf rtg rto rtr rtt rtu rua ruc rud rue ruf rug ruo rur rut ruu taa tac tad tae taf tag tao tar tat tau tca tcc tcd tce tcf tcg tco tcr tct tcu tda tdc tdd tde tdf tdg tdo tdr tdt tdu te- tea tec ted tee tef teg teo ter tet teu tfa tfc tfd tfe tff tfg tfo tfr tft tfu tga tgc tge tgf tgg tgo tgr tgt tgu to- toa toc tod toe tof tog too tor tot tou tra trc trd tre trf trg tro trr trt tru tta ttc ttd tte ttf ttg tto ttr ttt ttu tua tuc tud tue tuf tug tuo tur tut tuu ua- uaa uac uad uae uaf uag uao uar uat uau uca ucc ucd uce ucf ucg uco ucr uct ucu uda udc udd ude udf udg udo udr udt udu uea uec ued uee uef ueg uer uet ufa ufc ufd ufe uff ufg ufo ufr uft ufu uga ugc uge ugf ugg ugo ugr ugt ugu uoa uoc uod uoe uog uoo uor uot ur- ura urc urd ure urf urg uro urr urt uru uta utc utd ute utf uto utr utt utu uua uuc uue uug uur uut uuu