a-a a-b a-q aaa aab aae aaj aan aaq ab- aba abb abe abj abn abq aea aeb aee aej aen aeq aja ajb aje ajj ajn an- ana anb ane anj ann anq aqa aqn baa bab bae baj ban baq bba bbb bbe bbn bbq be- bea beb bee ben beq bja bjj bjn bna bnb bne bnj bnn bqe eaa eab eae eaj ean eba ebb ebe ebj ebn ebq eea eeb eee een eja en- ena enb ene enn eqa eqe eqn eqq jaa jab jae jaj jan jaq jba jbj jbq jea jeb jee jej jen jeq jja jjb jjj jna jne jnj jnn jqa naa nab nae naj nan nba nbb nbe nbn ne- nea neb nee nej nen nja nje njn nna nnb nne nnn qaa qan qba qbe qbq qee qen qnb qne qqq