a-a a-b a-i a-z aaa aab aad aai aan aar aaz ab- aba abb abd abi abn abr abz ad- ada adb add adi adn adr adz ai- aia aib aid aii ain air aiz an- ana anb and ani ann anr anz ar- ara arb ard ari arn arr arz az- aza azb azd azi azn azz baa bab bad bai ban bar baz bba bbb bbd bbi bbn bbr bda bdb bdd bdi bdr bdz bi- bia bib bid bii bin bir biz bna bnb bnd bni bnn bnr bnz bra brb brd bri brn brr brz bza bzd bzn bzr bzz daa dab dad dai dan dar daz dba dbb dbd dbi dbn dbr dbz dda ddb ddd ddi ddn ddr ddz di- dia dib did dii din dir diz dna dnb dnd dni dnn dnr dnz dra drb drd dri drn drr drz dza dzb dzd dzi dzr i-d ia- iaa iab iad iai ian iar iaz iba ibb ibd ibi ibn ibr ibz ida idb idd idi idn idr iia iib iid iii iin iir in- ina inb ind ini inn inr ir- ira irb ird iri irn irr iza izi izz n-i naa nab nad nai nan nar naz nba nbb nbd nbi nbn nbr nda ndb ndd ndi ndn ndr nia nib nid nii nin nir niz nna nnb nni nnn nnz nra nrb nrd nri nrn nrr nrz nzb nzd nzi nzz ra- raa rab rad rai ran rar raz rba rbb rbd rbi rbn rbr rda rdb rdd rdi rdn rdr ria rib rid rii rin rir riz rna rnb rnd rni rnn rnr rnz rra rrb rrd rri rrn rrr rza rzb zaa zab zad zai zan zar zaz zbb zbr zia zib zid zin zir ziz znd znn zzr zzz