a-a a-b aaa aab aaj aak aam aan ab- aba abb abj abk abm abn aja ajb ajj ajk ajm ajn aka akb akj akk akm akn ama amb amk amm amn an- ana anb anj ank anm ann baa bab baj bak bam ban bba bbb bbk bbm bbn bja bjj bjk bjm bjn bka bkb bkk bkm bkn bma bmb bmj bmk bmm bmn bna bnb bnj bnk bnn jaa jab jaj jak jam jan jba jbj jbk jbm jja jjb jjj jjk jka jkb jkk jkm jkn jma jmb jmj jmm jmn jna jnj jnn ka- kaa kab kaj kak kam kan kba kbb kbk kbm kbn kjb kkb kkk kkm kkn kma kmb kmj kmk kmm kn- kna knk knm knn maa mab maj mak mam man mba mbb mbj mbk mbm mjb mjj mjk mjm mka mkb mkk mkm mkn mma mmb mmj mmk mmm mmn mna mnb mnj mnk mnm mnn naa nab naj nak nam nan nba nbb nbk nbm nbn nja njk njm njn nka nkj nkk nkm nkn nma nmb nmk nmm nmn nna nnb nnk nnm nnn