-th a-a a-b a-t aaa aab aag aah aam aao aat ab- aba abb abg abh abm abo abt ag- aga agb agg agh agm ago agt aha ahb ahg ahh ahm aho aht ama amb amg amh amm amo amt aoa aob aog aoh aom aoo aot at- ata atb atg ath atm ato att baa bab bag bah bam bao bat bba bbb bbg bbh bbm bbo bbt bga bgb bgg bgh bgm bgo bgt bha bhb bhg bhh bhm bho bht bma bmb bmg bmh bmm bmo bmt boa bob bog boh bom boo bot bta btb btg bth btm bto btt gaa gab gag gah gam gao gat gba gbg gbh gbm gbo gbt gga ggb ggg ggh ggm ggo ggt gha ghb ghg ghh gho ght gma gmb gmg gmh gmm gmo gmt goa gob gog goh gom goo got gta gtb gtg gth gtm gto gtt haa hab hag hah ham hao hat hba hbb hbg hbh hbm hbo hbt hga hgb hgg hgh hgm hgo hgt hha hhb hhg hhh hhm hho hht hma hmb hmg hmh hmm hmo hmt hoa hob hog hoh hom hoo hot hta htb htg hth htm hto htt m-o maa mab mag mah mam mao mat mba mbb mbg mbh mbm mbo mbt mga mgb mgh mgm mgo mgt mha mhg mhh mhm mho mht mma mmb mmg mmh mmm mmo mmt moa mob mog moh mom moo mot mta mtb mtg mth mtm mto mtt oaa oab oag oah oam oao oat ob- oba obb obg obh obm obo obt oga ogg ogh ogo ogt oha ohg ohh ohm oho oht om- oma omb omg omh omm omo omt oo- ooa oob oog ooh oom ooo oot ot- ota otb otg oth otm oto ott taa tab tag tah tam tao tat tba tbb tbg tbh tbm tbo tbt tga tgb tgg tgh tgm tgo tgt th- tha thb thg thh thm tho tht tma tmb tmg tmh tmm tmo tmt to- toa tob tog toh tom too tot tta ttb ttg tth ttm tto ttt