-th a-a a-b a-t aaa aab aad aae aah aam aan aat ab- aba abb abd abe abh abm abn abt ad- ada adb add ade adh adm adn adt aea aeb aed aee aeh aem aen aet aha ahb ahd ahe ahh ahm ahn aht ama amb amd ame amh amm amn amt an- ana anb and ane anh anm ann ant at- ata atb atd ate ath atm atn att baa bab bad bae bah bam ban bat bba bbb bbd bbe bbh bbm bbn bbt bda bdb bdd bde bdh bdm bdt be- bea beb bed bee beh bem ben bet bha bhb bhd bhe bhh bhm bht bma bmb bmd bme bmh bmm bmn bmt bna bnb bnd bne bnn bnt bta btb btd bte bth btm btn btt daa dab dad dae dah dam dan dat dba dbb dbd dbe dbh dbm dbn dbt dda ddb ddd dde ddh ddm ddn ddt de- dea deb ded dee deh dem den det dh- dha dhb dhd dhe dhh dhm dht dma dmb dmd dme dmh dmm dmn dmt dna dnb dnd dne dnh dnm dnn dnt dta dtb dtd dte dth dtm dtn dtt eaa eab ead eae eah eam ean eat eba ebb ebd ebe ebh ebm ebn ebt ed- eda edb edd ede edh edm edn edt eea eeb eed eee eem een eet eha ehb ehd ehe ehh ehm ehn eht em- ema emb emd eme emh emm emn emt en- ena enb end ene enh enm enn ent eta etb etd ete eth etm etn ett haa hab had hae hah ham han hat hba hbb hbd hbe hbh hbm hbn hbt hda hdb hdd hde hdh hdm hdn hdt he- hea heb hed hee heh hem hen het hha hhb hhd hhe hhh hhm hhn hht hma hmb hmd hme hmh hmm hmt hna hnb hnd hne hnh hnn hnt hta htb htd hte hth htm htn htt maa mab mad mae mah mam man mat mba mbb mbd mbe mbh mbm mbt mda mdb mdd mde mdh mdm mdn mdt mea meb med mee meh mem men met mha mhd mhh mhm mhn mht mma mmb mmd mme mmh mmm mmn mmt mna mnb mne mnm mnn mnt mta mtb mtd mte mth mtm mtn mtt naa nab nad nae nah nam nan nat nba nbb nbd nbe nbm nbn nbt nda ndb ndd nde ndh ndm ndn ndt ne- nea neb ned nee neh nem nen net nha nhb nhd nhe nhh nhm nhn nht nma nmb nmd nme nmh nmm nmn nmt nna nnb nne nnh nnm nnn nnt nta ntb ntd nte nth ntm ntn ntt taa tab tad tae tah tam tan tat tba tbb tbd tbe tbh tbm tbn tbt tda tdb tdd tde tdh tdm tdn tdt te- tea teb ted tee teh tem ten tet th- tha thb thd the thh thm thn tht tma tmb tmd tme tmh tmm tmn tmt tna tnb tnd tne tnh tnm tnn tnt tta ttb ttd tte tth ttm ttn ttt