a-a a-b a-i a-z aaa aab aad aai aan aao aaz ab- aba abb abd abi abn abo abz ad- ada adb add adi adn ado adz ai- aia aib aid aii ain aio aiz an- ana anb and ani ann ano anz aoa aob aod aoi aon aoo az- aza azb azd azi azn azo azz baa bab bad bai ban bao baz bba bbb bbd bbi bbn bbo bda bdb bdd bdi bdo bdz bi- bia bib bid bii bin bio biz bna bnb bnd bni bnn bno bnz boa bob bod boi bon boo boz bza bzd bzn bzo bzz daa dab dad dai dan dao daz dba dbb dbd dbi dbn dbo dbz dda ddb ddd ddi ddn ddo ddz di- dia dib did dii din dio diz dna dnb dnd dni dnn dno dnz doa dob dod doi don doo doz dza dzb dzd dzi dzo i-d ia- iaa iab iad iai ian iao iaz iba ibb ibd ibi ibn ibo ibz ida idb idd idi idn ido iia iib iid iii iin iio in- ina inb ind ini inn ino io- ioa iob iod ioi ion ioo iza izi izo izz n-i naa nab nad nai nan nao naz nba nbb nbd nbi nbn nbo nda ndb ndd ndi ndn ndo nia nib nid nii nin nio niz nna nnb nni nnn nno nnz no- noa nob nod noi non noo noz nzb nzd nzi nzo nzz o-i oaa oab oad oai oan oao ob- oba obb obd obi obn obo oda odb odd odi odn odo oia oib oid oii oin oio oiz on- ona onb ond oni onn ono oo- ooa oob ood ooi oon ooo oza ozo ozz zaa zab zad zai zan zao zaz zbb zia zib zid zin zio ziz znd znn zno zo- zoa zob zod zoi zon zoo zzz