-th a-a a-b a-c a-t aaa aab aac aae aah aam aat ab- aba abb abc abe abh abm abt ac- aca acb acc ace ach acm act aea aeb aec aee aeh aem aet aha ahb ahc ahe ahh ahm aht ama amb amc ame amh amm amt at- ata atb atc ate ath atm att baa bab bac bae bah bam bat bba bbb bbc bbe bbh bbm bbt bca bcb bcc bce bch bcm bct be- bea beb bec bee beh bem bet bha bhb bhc bhe bhh bhm bht bma bmb bmc bme bmh bmm bmt bta btb btc bte bth btm btt c-- caa cab cac cae cah cam cat cba cbb cbc cbe cbh cbm cbt cca ccb ccc cce cch ccm cct ce- cea ceb cec cee ceh cem cet ch- cha chb chc che chh chm cht cma cmb cmc cme cmh cmm cmt cta ctb ctc cte cth ctm ctt eaa eab eac eae eah eam eat eba ebb ebc ebe ebh ebm ebt ec- eca ecb ecc ece ech ecm ect eea eeb eec eee eem eet eha ehb ehc ehe ehh ehm eht em- ema emb emc eme emh emm emt eta etb etc ete eth etm ett haa hab hac hae hah ham hat hba hbb hbc hbe hbh hbm hbt hca hcb hcc hce hch hcm hct he- hea heb hec hee heh hem het hha hhb hhc hhe hhh hhm hht hma hmb hmc hme hmh hmm hmt hta htb htc hte hth htm htt maa mab mac mae mah mam mat mba mbb mbc mbe mbh mbm mbt mc- mca mcb mcc mce mch mcm mct mea meb mec mee meh mem met mha mhc mhh mhm mht mma mmb mmc mme mmh mmm mmt mta mtb mtc mte mth mtm mtt taa tab tac tae tah tam tat tba tbb tbc tbe tbh tbm tbt tca tcb tcc tce tch tcm tct te- tea teb tec tee teh tem tet th- tha thb thc the thh thm tht tma tmb tmc tme tmh tmm tmt tta ttb ttc tte tth ttm ttt