-th a-a a-b a-c a-t a-z aaa aab aac aah aam aat aaz ab- aba abb abc abh abm abt abz ac- aca acb acc ach acm act acz aha ahb ahc ahh ahm aht ahz ama amb amc amh amm amt amz at- ata atb atc ath atm att atz az- aza azb azm azt azz baa bab bac bah bam bat baz bba bbb bbc bbh bbm bbt bca bcb bcc bch bcm bct bcz bha bhb bhc bhh bhm bht bma bmb bmc bmh bmm bmt bmz bta btb btc bth btm btt btz bza bzh bzz c-- caa cab cac cah cam cat caz cba cbb cbc cbh cbm cbt cbz cca ccb ccc cch ccm cct ccz ch- cha chb chc chh chm cht chz cma cmb cmc cmh cmm cmt cta ctb ctc cth ctm ctt ctz cz- czc czm czt haa hab hac hah ham hat haz hba hbb hbc hbh hbm hbt hbz hca hcb hcc hch hcm hct hha hhb hhc hhh hhm hht hhz hma hmb hmc hmh hmm hmt hmz hta htb htc hth htm htt htz hzt maa mab mac mah mam mat maz mba mbb mbc mbh mbm mbt mc- mca mcb mcc mch mcm mct mcz mha mhc mhh mhm mht mhz mma mmb mmc mmh mmm mmt mmz mta mtb mtc mth mtm mtt mza mzb mzm mzt taa tab tac tah tam tat taz tba tbb tbc tbh tbm tbt tbz tca tcb tcc tch tcm tct th- tha thb thc thh thm tht thz tma tmb tmc tmh tmm tmt tmz tta ttb ttc tth ttm ttt tza zaa zab zac zah zam zat zaz zbb zbc zbm zbt zha zhc zma zmb zmc zmm zmt zta ztm zzt zzz