a-a a-b a-i a-z aaa aab aad aah aai aao aar aaz ab- aba abb abd abh abi abo abr abz ad- ada adb add adh adi ado adr adz aha ahb ahd ahh ahi aho ahr ahz ai- aia aib aid aih aii aio air aiz aoa aob aod aoh aoi aoo aor ar- ara arb ard arh ari aro arr arz az- aza azb azd azi azo azz baa bab bad bah bai bao bar baz bba bbb bbd bbh bbi bbo bbr bda bdb bdd bdh bdi bdo bdr bdz bha bhb bhd bhh bhi bho bhr bi- bia bib bid bih bii bio bir biz boa bob bod boh boi boo bor boz bra brb brd brh bri bro brr brz bza bzd bzh bzo bzr bzz daa dab dad dah dai dao dar daz dba dbb dbd dbh dbi dbo dbr dbz dda ddb ddd ddh ddi ddo ddr ddz dh- dha dhb dhd dhh dhi dho dhr di- dia dib did dih dii dio dir diz doa dob dod doh doi doo dor doz dra drb drd dri dro drr drz dza dzb dzd dzi dzo dzr h-i haa hab had hah hai hao har haz hba hbb hbd hbh hbi hbo hbr hbz hda hdb hdd hdh hdi hdo hdr hdz hha hhb hhd hhh hhi hho hhr hhz hia hib hid hih hii hio hir hoa hob hod hoh hoi hoo hor hr- hra hrb hrd hrh hri hro hrr hrz hzd hzo i-d ia- iaa iab iad iah iai iao iar iaz iba ibb ibd ibh ibi ibo ibr ibz ida idb idd idh idi ido idr iha ihb ihd ihh ihi iho ihr iia iib iid iih iii iio iir io- ioa iob iod ioh ioi ioo ior ir- ira irb ird iri iro irr iza izh izi izo izz o-i oaa oab oad oah oai oao oar ob- oba obb obd obh obi obo obr oda odb odd odh odi odo odr oha ohd ohh ohi oho ohr oia oib oid oii oio oir oiz oo- ooa oob ood ooh ooi ooo oor or- ora orb ord orh ori oro orr orz oza ozo ozz ra- raa rab rad rah rai rao rar raz rba rbb rbd rbh rbi rbo rbr rda rdb rdd rdh rdi rdo rdr rh- rha rhb rhd rhh rhi rho rhr ria rib rid rih rii rio rir riz roa rob rod roh roi roo ror roz rra rrb rrd rrh rri rrr rza rzb rzo zaa zab zad zah zai zao zar zaz zbb zbr zha zhi zho zhr zia zib zid zio zir ziz zo- zoa zob zod zoi zoo zor zrh zro zzr zzz