a-a aaa aad aae aaf aam aao aas ad- ada add ade adf adm ado ads aea aed aee aef aem aeo aes af- afa afd afe aff afm afo afs ama amd ame amf amm amo ams aoa aod aoe aof aom aoo aos as- asa asd ase asf asm aso ass daa dad dae daf dam dao das dda ddd dde ddf ddm ddo dds de- dea ded dee def dem deo des dfa dfd dfe dff dfm dfo dfs dma dmd dme dmf dmm dmo dms doa dod doe dof dom doo dos dsa dsd dse dsf dsm dso dss eaa ead eae eaf eam eao eas ed- eda edd ede edf edm edo eds eea eed eee eef eem eeo ees ef- efa efd efe eff efm efo efs em- ema emd eme emf emm emo ems eo- eoa eod eoe eof eom eoo eos es- esa esd ese esf esm eso ess faa fad fae faf fam fao fas fda fdd fde fdf fdm fdo fds fea fed fee fef fem feo fes ffa ffd ffe fff ffm ffo ffs fma fmd fme fmf fmm fmo fms foa foe fof fom foo fos fsa fsd fse fsf fsm fso fss m-f m-o maa mad mae maf mam mao mas mda mdd mde mdf mdm mdo mds mea med mee mef mem meo mes mfa mfd mfe mff mfm mfo mfs mma mmd mme mmf mmm mmo mms moa mod moe mof mom moo mos msa msd mse msf msm mso mss oaa oad oae oaf oam oao oas oda odd ode odf odm odo ods oea oed oee oef oem oeo oes of- ofa ofd ofe off ofm ofo ofs om- oma omd ome omf omm omo oms oo- ooa ood oof oom ooo oos os- osa osd ose osf osm oso oss saa sad sae saf sam sao sas sda sdd sde sdf sdm sdo sds se- sea sed see sef sem seo ses sfa sfd sfe sff sfm sfo sfs sma smd sme smf smm smo sms soa sod soe sof som soo sos ss- ssa ssd sse ssf ssm sso sss