a-a a-b a-z aaa aab aaj aan aao aaz ab- aba abb abj abn abo abz aja ajb ajj ajn ajo an- ana anb anj ann ano anz aoa aob aoj aon aoo az- aza azb azn azo azz baa bab baj ban bao baz bba bbb bbn bbo bja bjj bjn bna bnb bnj bnn bno bnz boa bob boj bon boo boz bza bzn bzo bzz j-z jaa jab jaj jan jao jaz jba jbj jbo jbz jja jjb jjj jna jnj jnn jno joa job joj jon joo naa nab naj nan nao naz nba nbb nbn nbo nja njn nna nnb nnn nno nnz no- noa nob noj non noo noz nzb nzo nzz oaa oab oaj oan oao ob- oba obb obj obn obo oja ojb ojo on- ona onb onj onn ono oo- ooa oob oon ooo oza ozo ozz zaa zab zaj zan zao zaz zbb znn zno zo- zoa zob zon zoo zzz