a-a aaa aad aae aaf aam aas ad- ada add ade adf adm ads aea aed aee aef aem aes af- afa afd afe aff afm afs ama amd ame amf amm ams as- asa asd ase asf asm ass daa dad dae daf dam das dda ddd dde ddf ddm dds de- dea ded dee def dem des dfa dfd dfe dff dfm dfs dma dmd dme dmf dmm dms dsa dsd dse dsf dsm dss eaa ead eae eaf eam eas ed- eda edd ede edf edm eds eea eed eee eef eem ees ef- efa efd efe eff efm efs em- ema emd eme emf emm ems es- esa esd ese esf esm ess faa fad fae faf fam fas fda fdd fde fdf fdm fds fea fed fee fef fem fes ffa ffd ffe fff ffm ffs fma fmd fme fmf fmm fms fsa fsd fse fsf fsm fss m-f maa mad mae maf mam mas mda mdd mde mdf mdm mds mea med mee mef mem mes mfa mfd mfe mff mfm mfs mma mmd mme mmf mmm mms msa msd mse msf msm mss saa sad sae saf sam sas sda sdd sde sdf sdm sds se- sea sed see sef sem ses sfa sfd sfe sff sfm sfs sma smd sme smf smm sms ss- ssa ssd sse ssf ssm sss