a-a a-b a-t aaa aab aae aag aam aan aao aat ab- aba abb abe abg abm abn abo abt aea aeb aee aeg aem aen aeo aet ag- aga agb age agg agm agn ago agt ama amb ame amg amm amn amo amt an- ana anb ane ang anm ann ano ant aoa aob aoe aog aom aon aoo aot at- ata atb ate atg atm atn ato att baa bab bae bag bam ban bao bat bba bbb bbe bbg bbm bbn bbo bbt be- bea beb bee beg bem ben beo bet bga bgb bge bgg bgm bgn bgo bgt bma bmb bme bmg bmm bmn bmo bmt bna bnb bne bng bnn bno bnt boa bob boe bog bom bon boo bot bta btb bte btg btm btn bto btt eaa eab eae eag eam ean eao eat eba ebb ebe ebg ebm ebn ebo ebt eea eeb eee eeg eem een eeo eet ega egb ege egg egm egn ego egt em- ema emb eme emg emm emn emo emt en- ena enb ene eng enm enn eno ent eo- eoa eob eoe eog eom eon eoo eot eta etb ete etg etm etn eto ett gaa gab gae gag gam gan gao gat gba gbe gbg gbm gbn gbo gbt ge- gea geb gee geg gem gen geo get gga ggb ggg ggm ggn ggo ggt gma gmb gme gmg gmm gmn gmo gmt gna gnb gne gnm gnn gno gnt goa gob goe gog gom gon goo got gta gtb gte gtg gtm gtn gto gtt m-o maa mab mae mag mam man mao mat mba mbb mbe mbg mbm mbo mbt mea meb mee meg mem men meo met mga mgb mge mgm mgn mgo mgt mma mmb mme mmg mmm mmn mmo mmt mna mnb mne mng mnm mnn mno mnt moa mob moe mog mom mon moo mot mta mtb mte mtg mtm mtn mto mtt naa nab nae nag nam nan nao nat nba nbb nbe nbg nbm nbn nbo nbt ne- nea neb nee neg nem nen neo net nga ngb nge ngg ngm ngn ngo ngt nma nmb nme nmg nmm nmn nmo nmt nna nnb nne nng nnm nnn nno nnt no- noa nob noe nog nom non noo not nta ntb nte ntg ntm ntn nto ntt oaa oab oae oag oam oan oao oat ob- oba obb obe obg obm obn obo obt oea oeb oee oeg oem oen oeo oet oga oge ogg ogn ogo ogt om- oma omb ome omg omm omn omo omt on- ona onb one ong onn ono ont oo- ooa oob oog oom oon ooo oot ot- ota otb ote otg otm otn oto ott taa tab tae tag tam tan tao tat tba tbb tbe tbg tbm tbn tbo tbt te- tea teb tee teg tem ten teo tet tga tgb tge tgg tgm tgn tgo tgt tma tmb tme tmg tmm tmn tmo tmt tna tnb tne tng tnm tnn tno tnt to- toa tob toe tog tom ton too tot tta ttb tte ttg ttm ttn tto ttt