a-a a-b a-t aaa aab aae aaj aan aao aat ab- aba abb abe abj abn abo abt aea aeb aee aej aen aeo aet aja ajb aje ajj ajn ajo ajt an- ana anb ane anj ann ano ant aoa aob aoe aoj aon aoo aot at- ata atb ate atn ato att baa bab bae baj ban bao bat bba bbb bbe bbn bbo bbt be- bea beb bee ben beo bet bja bjj bjn bjt bna bnb bne bnj bnn bno bnt boa bob boe boj bon boo bot bta btb bte btn bto btt eaa eab eae eaj ean eao eat eba ebb ebe ebj ebn ebo ebt eea eeb eee een eeo eet eja ejo ejt en- ena enb ene enn eno ent eo- eoa eob eoe eon eoo eot eta etb ete etj etn eto ett jaa jab jae jaj jan jao jat jba jbj jbo jbt jea jeb jee jej jen jeo jet jja jjb jjj jna jne jnj jnn jno jnt joa job joe joj jon joo jot jta jtb jte jtn jtt naa nab nae naj nan nao nat nba nbb nbe nbn nbo nbt ne- nea neb nee nej nen neo net nja nje njn nna nnb nne nnn nno nnt no- noa nob noe noj non noo not nta ntb nte ntn nto ntt oaa oab oae oaj oan oao oat ob- oba obb obe obj obn obo obt oea oeb oee oen oeo oet oja ojb oje ojo on- ona onb one onj onn ono ont oo- ooa oob oon ooo oot ot- ota otb ote otn oto ott taa tab tae taj tan tao tat tba tbb tbe tbj tbn tbo tbt te- tea teb tee tej ten teo tet tje tjo tna tnb tne tnn tno tnt to- toa tob toe toj ton too tot tta ttb tte ttn tto ttt