a-a aaa aad aaf aak aam ad- ada add adf adk adm af- afa afd aff afk afm aka akd akk akm ama amd amf amk amm daa dad daf dak dam dda ddd ddf ddk ddm dfa dfd dff dfk dfm dka dkk dkm dma dmd dmf dmk dmm faa fad faf fak fam fda fdd fdf fdk fdm ffa ffd fff ffk ffm fka fkf fkk fkm fma fmd fmf fmm ka- kaa kad kaf kak kam kda kdf kdk kdm kfa kfd kff kfm kkk kkm kma kmd kmf kmk kmm m-f maa mad maf mak mam mda mdd mdf mdk mdm mfa mfd mff mfm mka mkd mkk mkm mma mmd mmf mmk mmm