-th a-a a-b a-c a-t aaa aab aac aae aah aam aao aat ab- aba abb abc abe abh abm abo abt ac- aca acb acc ace ach acm aco act aea aeb aec aee aeh aem aeo aet aha ahb ahc ahe ahh ahm aho aht ama amb amc ame amh amm amo amt aoa aob aoc aoe aoh aom aoo aot at- ata atb atc ate ath atm ato att baa bab bac bae bah bam bao bat bba bbb bbc bbe bbh bbm bbo bbt bca bcb bcc bce bch bcm bco bct be- bea beb bec bee beh bem beo bet bha bhb bhc bhe bhh bhm bho bht bma bmb bmc bme bmh bmm bmo bmt boa bob boc boe boh bom boo bot bta btb btc bte bth btm bto btt c-- caa cab cac cae cah cam cao cat cba cbb cbc cbe cbh cbm cbo cbt cca ccb ccc cce cch ccm cco cct ce- cea ceb cec cee ceh cem ceo cet ch- cha chb chc che chh chm cho cht cma cmb cmc cme cmh cmm cmo cmt co- coa cob coc coe coh com coo cot cta ctb ctc cte cth ctm cto ctt eaa eab eac eae eah eam eao eat eba ebb ebc ebe ebh ebm ebo ebt ec- eca ecb ecc ece ech ecm eco ect eea eeb eec eee eem eeo eet eha ehb ehc ehe ehh ehm eho eht em- ema emb emc eme emh emm emo emt eo- eoa eob eoc eoe eoh eom eoo eot eta etb etc ete eth etm eto ett haa hab hac hae hah ham hao hat hba hbb hbc hbe hbh hbm hbo hbt hca hcb hcc hce hch hcm hco hct he- hea heb hec hee heh hem heo het hha hhb hhc hhe hhh hhm hho hht hma hmb hmc hme hmh hmm hmo hmt hoa hob hoc hoe hoh hom hoo hot hta htb htc hte hth htm hto htt m-o maa mab mac mae mah mam mao mat mba mbb mbc mbe mbh mbm mbo mbt mc- mca mcb mcc mce mch mcm mco mct mea meb mec mee meh mem meo met mha mhc mhh mhm mho mht mma mmb mmc mme mmh mmm mmo mmt moa mob moc moe moh mom moo mot mta mtb mtc mte mth mtm mto mtt oaa oab oac oae oah oam oao oat ob- oba obb obc obe obh obm obo obt oc- oca ocb occ och ocm oco oct oea oeb oec oee oeh oem oeo oet oha ohc ohe ohh ohm oho oht om- oma omb omc ome omh omm omo omt oo- ooa oob ooc ooh oom ooo oot ot- ota otb otc ote oth otm oto ott taa tab tac tae tah tam tao tat tba tbb tbc tbe tbh tbm tbo tbt tca tcb tcc tce tch tcm tco tct te- tea teb tec tee teh tem teo tet th- tha thb thc the thh thm tho tht tma tmb tmc tme tmh tmm tmo tmt to- toa tob toc toe toh tom too tot tta ttb ttc tte tth ttm tto ttt