a-a a-b a-i a-z aaa aab aad aai aam aao aar aaz ab- aba abb abd abi abm abo abr abz ad- ada adb add adi adm ado adr adz ai- aia aib aid aii aim aio air aiz ama amb amd ami amm amo amr amz aoa aob aod aoi aom aoo aor ar- ara arb ard ari arm aro arr arz az- aza azb azd azi azm azo azz baa bab bad bai bam bao bar baz bba bbb bbd bbi bbm bbo bbr bda bdb bdd bdi bdm bdo bdr bdz bi- bia bib bid bii bim bio bir biz bma bmb bmd bmi bmm bmo bmr bmz boa bob bod boi bom boo bor boz bra brb brd bri brm bro brr brz bza bzd bzo bzr bzz daa dab dad dai dam dao dar daz dba dbb dbd dbi dbm dbo dbr dbz dda ddb ddd ddi ddm ddo ddr ddz di- dia dib did dii dim dio dir diz dma dmb dmd dmi dmm dmo dmr dmz doa dob dod doi dom doo dor doz dra drb drd dri drm dro drr drz dza dzb dzd dzi dzo dzr i-d ia- iaa iab iad iai iam iao iar iaz iba ibb ibd ibi ibm ibo ibr ibz ida idb idd idi idm ido idr iia iib iid iii iim iio iir im- ima imb imd imi imm imo imz io- ioa iob iod ioi iom ioo ior ir- ira irb ird iri irm iro irr iza izi izm izo izz m-o m-r maa mab mad mai mam mao mar maz mba mbb mbd mbi mbm mbo mbr mda mdb mdd mdi mdm mdo mdr mdz mi- mia mib mid mii mim mio mir miz mma mmb mmd mmi mmm mmo mmr mmz moa mob mod moi mom moo mor moz mra mrb mrd mri mrm mro mrr mrz mza mzb mzi mzm o-i oaa oab oad oai oam oao oar ob- oba obb obd obi obm obo obr oda odb odd odi odm odo odr oia oib oid oii oim oio oir oiz om- oma omb omd omi omm omo omr omz oo- ooa oob ood ooi oom ooo oor or- ora orb ord ori orm oro orr orz oza ozm ozo ozz ra- raa rab rad rai ram rao rar raz rba rbb rbd rbi rbm rbo rbr rda rdb rdd rdi rdm rdo rdr ria rib rid rii rim rio rir riz rma rmb rmd rmi rmm rmo rmr roa rob rod roi rom roo ror roz rra rrb rrd rri rrm rrr rza rzb rzm rzo zaa zab zad zai zam zao zar zaz zbb zbm zbr zdm zia zib zid zim zio zir ziz zma zmb zmd zmm zo- zoa zob zod zoi zom zoo zor zro zzr zzz