a-a a-b aaa aab aad aah aak aam ab- aba abb abd abh abk abm ad- ada adb add adh adk adm aha ahb ahd ahh ahk ahm aka akb akd akh akk akm ama amb amd amh amk amm baa bab bad bah bak bam bba bbb bbd bbh bbk bbm bda bdb bdd bdh bdk bdm bha bhb bhd bhh bhk bhm bka bkb bkk bkm bma bmb bmd bmh bmk bmm daa dab dad dah dak dam dba dbb dbd dbh dbk dbm dda ddb ddd ddh ddk ddm dh- dha dhb dhd dhh dhk dhm dka dkb dkk dkm dma dmb dmd dmh dmk dmm haa hab had hah hak ham hba hbb hbd hbh hbk hbm hda hdb hdd hdh hdk hdm hha hhb hhd hhh hhk hhm hka hkb hkd hkh hkk hkm hma hmb hmd hmh hmk hmm ka- kaa kab kad kah kak kam kba kbb kbd kbh kbk kbm kda kdb kdh kdk kdm kha khh khk khm kkb kkh kkk kkm kma kmb kmd kmh kmk kmm maa mab mad mah mak mam mba mbb mbd mbh mbk mbm mda mdb mdd mdh mdk mdm mha mhd mhh mhk mhm mka mkb mkd mkh mkk mkm mma mmb mmd mmh mmk mmm