-er a-a a-c a-t aaa aac aad aae aaf aag aao aar aas aat aau ac- aca acc acd ace acf acg aco acr acs act acu ad- ada adc add ade adf adg ado adr ads adt adu aea aec aed aee aef aeg aeo aer aes aet aeu af- afa afc afd afe aff afg afo afr afs aft afu ag- aga agc agd age agf agg ago agr ags agt agu aoa aoc aod aoe aof aog aoo aor aos aot aou ar- ara arc ard are arf arg aro arr ars art aru as- asa asc asd ase asf asg aso asr ass ast asu at- ata atc atd ate atf atg ato atr ats att atu au- aua auc aud aue auf aug auo aur aus aut c-- caa cac cad cae caf cag cao car cas cat cau cca ccc ccd cce ccf ccg cco ccr ccs cct ccu cda cdc cdd cde cdf cdg cdo cdr cds cdt cdu ce- cea cec ced cee cef ceg ceo cer ces cet ceu cfa cfc cfd cfe cff cfg cfo cfr cfs cft cfu cga cgc cgd cge cgg cgo cgr cgs cgt cgu co- coa coc cod coe cof cog coo cor cos cot cou cra crc crd cre crf crg cro crr crs crt cru csa csc csd cse csf csg cso csr css cst csu cta ctc ctd cte ctf ctg cto ctr cts ctt ctu cua cuc cud cue cuf cug cuo cur cus cut cuu daa dac dad dae daf dag dao dar das dat dau dca dcc dcd dce dcf dcg dco dcr dcs dct dcu dda ddc ddd dde ddf ddg ddo ddr dds ddt ddu de- dea dec ded dee def deg deo der des det deu dfa dfc dfd dfe dff dfg dfo dfr dfs dft dfu dga dgc dgd dge dgf dgg dgr dgs dgt dgu doa doc dod doe dof dog doo dor dos dot dou dra drc drd dre drg dro drr drs drt dru dsa dsc dsd dse dsf dsg dso dsr dss dst dsu dta dtc dtd dte dtf dtg dto dtr dts dtt dtu dua duc dud due duf dug duo dur dus dut eaa eac ead eae eaf eag eao ear eas eat eau ec- eca ecc ecd ece ecf ecg eco ecr ecs ect ecu ed- eda edc edd ede edf edg edo edr eds edt edu eea eec eed eee eef eeg eeo eer ees eet ef- efa efc efd efe eff efg efo efr efs eft ega egc egd ege egf egg ego egr egs egt egu eo- eoa eoc eod eoe eof eog eoo eor eos eot eou era erc erd ere erf erg ero err ers ert eru es- esa esc esd ese esf esg eso esr ess est esu eta etc etd ete etf etg eto etr ets ett etu eu- eua euc eud eue euf eug eur eus eut faa fac fad fae faf fag fao far fas fat fau fca fcc fcd fce fcf fcg fco fcr fcs fct fcu fda fdc fdd fde fdf fdg fdo fdr fds fdt fdu fea fec fed fee fef feg feo fer fes fet feu ffa ffc ffd ffe fff ffg ffo ffr ffs fft ffu fga fgc fgd fge fgf fgg fgr fgs fgt foa foc foe fof fog foo for fos fot fou fra frc frd fre frf frg fro frr frs frt fru fsa fsc fsd fse fsf fsg fso fsr fss fst fsu fta ftc ftd fte ftf ftg fto ftr fts ftt ftu fua fud fue fuf fug fuo fur fus fut fuu g-d gaa gac gad gae gaf gag gao gar gas gat gau gca gcc gcd gce gcf gcg gco gcr gcs gct gcu gda gdc gdd gde gdf gdo gdr gds gdt gdu ge- gea gec ged gee gef geg geo ger ges get geu gfa gfc gfd gfe gff gfo gfr gfs gft gga ggc ggd ggg ggo ggr ggs ggt ggu goa goc god goe gof gog goo gor gos got gou gra grc grd gre grf grg gro grr grs grt gru gsa gsc gsd gse gsf gsg gso gsr gss gst gsu gta gtc gtd gte gtf gtg gto gtr gts gtt gtu gu- gua guc gud gue guf gug guo gur gus gut guu oaa oac oad oae oaf oag oao oar oas oat oau oc- oca occ ocd ocf ocg oco ocr ocs oct ocu oda odc odd ode odf odg odo odr ods odt odu oea oec oed oee oef oeg oeo oer oes oet of- ofa ofc ofd ofe off ofg ofo ofr ofs oft ofu oga ogc ogd oge ogf ogg ogo ogs ogt oo- ooa ooc ood oof oog ooo oor oos oot or- ora orc ord ore orf org oro orr ors ort oru os- osa osc osd ose osf osg oso osr oss ost osu ot- ota otc otd ote otf otg oto otr ots ott otu ou- oua ouc oud oue ouf ouo our ous out ra- raa rac rad rae raf rag rao rar ras rat rau rca rcc rcd rce rcf rcg rco rcr rcs rct rcu rda rdc rdd rde rdf rdg rdo rdr rds rdt rdu re- rea rec red ree ref reg reo rer res ret reu rfa rfc rfd rfe rff rfg rfo rfr rfs rft rfu rga rgc rgd rge rgf rgg rgo rgr rgs rgt roa roc rod roe rof rog roo ror ros rot rou rra rrc rrd rrf rrg rrr rrs rrt rru rsa rsc rsd rse rsf rsg rso rsr rss rst rsu rta rtc rtd rte rtf rtg rto rtr rts rtt rtu rua ruc rud rue ruf rug ruo rur rus rut ruu saa sac sad sae saf sag sao sar sas sat sau sca scc scd sce scf scg sco scr scs sct scu sda sdc sdd sde sdf