a-a a-b a-t aaa aab aad aae aag aam aan aat ab- aba abb abd abe abg abm abn abt ad- ada adb add ade adg adm adn adt aea aeb aed aee aeg aem aen aet ag- aga agb agd age agg agm agn agt ama amb amd ame amg amm amn amt an- ana anb and ane ang anm ann ant at- ata atb atd ate atg atm atn att baa bab bad bae bag bam ban bat bba bbb bbd bbe bbg bbm bbn bbt bda bdb bdd bde bdg bdm bdt be- bea beb bed bee beg bem ben bet bga bgb bgd bge bgg bgm bgn bgt bma bmb bmd bme bmg bmm bmn bmt bna bnb bnd bne bng bnn bnt bta btb btd bte btg btm btn btt daa dab dad dae dag dam dan dat dba dbb dbd dbe dbg dbm dbn dbt dda ddb ddd dde ddg ddm ddn ddt de- dea deb ded dee deg dem den det dga dgd dge dgg dgm dgn dgt dma dmb dmd dme dmg dmm dmn dmt dna dnb dnd dne dng dnm dnn dnt dta dtb dtd dte dtg dtm dtn dtt eaa eab ead eae eag eam ean eat eba ebb ebd ebe ebg ebm ebn ebt ed- eda edb edd ede edg edm edn edt eea eeb eed eee eeg eem een eet ega egb egd ege egg egm egn egt em- ema emb emd eme emg emm emn emt en- ena enb end ene eng enm enn ent eta etb etd ete etg etm etn ett g-d gaa gab gad gae gag gam gan gat gba gbd gbe gbg gbm gbn gbt gda gdb gdd gde gdm gdn gdt ge- gea geb ged gee geg gem gen get gga ggb ggd ggg ggm ggn ggt gma gmb gmd gme gmg gmm gmn gmt gna gnb gnd gne gnm gnn gnt gta gtb gtd gte gtg gtm gtn gtt maa mab mad mae mag mam man mat mba mbb mbd mbe mbg mbm mbt mda mdb mdd mde mdg mdm mdn mdt mea meb med mee meg mem men met mga mgb mgd mge mgm mgn mgt mma mmb mmd mme mmg mmm mmn mmt mna mnb mne mng mnm mnn mnt mta mtb mtd mte mtg mtm mtn mtt naa nab nad nae nag nam nan nat nba nbb nbd nbe nbg nbm nbn nbt nda ndb ndd nde ndg ndm ndn ndt ne- nea neb ned nee neg nem nen net nga ngb ngd nge ngg ngm ngn ngt nma nmb nmd nme nmg nmm nmn nmt nna nnb nne nng nnm nnn nnt nta ntb ntd nte ntg ntm ntn ntt taa tab tad tae tag tam tan tat tba tbb tbd tbe tbg tbm tbn tbt tda tdb tdd tde tdg tdm tdn tdt te- tea teb ted tee teg tem ten tet tga tgb tge tgg tgm tgn tgt tma tmb tmd tme tmg tmm tmn tmt tna tnb tnd tne tng tnm tnn tnt tta ttb ttd tte ttg ttm ttn ttt