a-a a-c aaa aac aad aae aaf aag aas aau ac- aca acc acd ace acf acg acs acu ad- ada adc add ade adf adg ads adu aea aec aed aee aef aeg aes aeu af- afa afc afd afe aff afg afs afu ag- aga agc agd age agf agg ags agu as- asa asc asd ase asf asg ass asu au- aua auc aud aue auf aug aus c-- caa cac cad cae caf cag cas cau cca ccc ccd cce ccf ccg ccs ccu cda cdc cdd cde cdf cdg cds cdu ce- cea cec ced cee cef ceg ces ceu cfa cfc cfd cfe cff cfg cfs cfu cga cgc cgd cge cgg cgs cgu csa csc csd cse csf csg css csu cua cuc cud cue cuf cug cus cuu daa dac dad dae daf dag das dau dca dcc dcd dce dcf dcg dcs dcu dda ddc ddd dde ddf ddg dds ddu de- dea dec ded dee def deg des deu dfa dfc dfd dfe dff dfg dfs dfu dga dgc dgd dge dgf dgg dgs dgu dsa dsc dsd dse dsf dsg dss dsu dua duc dud due duf dug dus eaa eac ead eae eaf eag eas eau ec- eca ecc ecd ece ecf ecg ecs ecu ed- eda edc edd ede edf edg eds edu eea eec eed eee eef eeg ees ef- efa efc efd efe eff efg efs ega egc egd ege egf egg egs egu es- esa esc esd ese esf esg ess esu eu- eua euc eud eue euf eug eus faa fac fad fae faf fag fas fau fca fcc fcd fce fcf fcg fcs fcu fda fdc fdd fde fdf fdg fds fdu fea fec fed fee fef feg fes feu ffa ffc ffd ffe fff ffg ffs ffu fga fgc fgd fge fgf fgg fgs fsa fsc fsd fse fsf fsg fss fsu fua fud fue fuf fug fus fuu g-d gaa gac gad gae gaf gag gas gau gca gcc gcd gce gcf gcg gcs gcu gda gdc gdd gde gdf gds gdu ge- gea gec ged gee gef geg ges geu gfa gfc gfd gfe gff gfs gga ggc ggd ggg ggs ggu gsa gsc gsd gse gsf gsg gss gsu gu- gua guc gud gue guf gug gus guu saa sac sad sae saf sag sas sau sca scc scd sce scf scg scs scu sda sdc sdd sde sdf sdg sds sdu se- sea sec sed see sef seg ses seu sfa sfc sfd sfe sff sfg sfs sfu sga sgc sgd sge sgf sgg sgs sgu ss- ssa ssc ssd sse ssf ssg sss ssu sua suc sud sue suf sug sus suu ua- uaa uac uad uae uaf uag uas uau uca ucc ucd uce ucf ucg ucs ucu uda udc udd ude udf udg uds udu uea uec ued uee uef ueg ues ufa ufc ufd ufe uff ufg ufs ufu uga ugc uge ugf ugg ugs ugu usa usc usd use usf usg uss usu uua uuc uue uug uus uuu