a-a a-b a-q a-z aaa aab aam aao aaq aar aax aaz ab- aba abb abm abo abq abr abx abz ama amb amm amo amq amr amx amz aoa aob aom aoo aor aox aqa aqm aqo aqr ar- ara arb arm aro arq arr arx arz ax- axa axm axo axr axx az- aza azb azm azo azq azx azz baa bab bam bao baq bar bax baz bba bbb bbm bbo bbq bbr bbx bma bmb bmm bmo bmq bmr bmx bmz boa bob bom boo boq bor box boz bra brb brm bro brq brr brx brz bxb bxm bxo bxq bxx bza bzo bzr bzz m-o m-r maa mab mam mao mar max maz mba mbb mbm mbo mbq mbr mbx mma mmb mmm mmo mmr mmx mmz moa mob mom moo mor mox moz mqa mqb mqr mqx mqz mra mrb mrm mro mrq mrr mrx mrz mxa mxr mza mzb mzm mzx oaa oab oam oao oaq oar oax ob- oba obb obm obo obr obx om- oma omb omm omo omr omx omz oo- ooa oob oom ooo oor oox oqb oqo or- ora orb orm oro orr orx orz ox- oxa oxb oxo oxx oza ozm ozo ozz qaa qam qar qax qaz qba qbq qma qmr qom qoo qor qqq qra qrb qrm ra- raa rab ram rao raq rar rax raz rba rbb rbm rbo rbr rbx rma rmb rmm rmo rmq rmr rmx roa rob rom roo ror rox roz rqm rra rrb rrm rrq rrr rxr rza rzb rzm rzo xaa xam xar xbr xbx xma xmm xmo xmr xmx xoa xom xoo xor xox xrx xxo xxx zaa zab zam zao zaq zar zax zaz zbb zbm zbr zma zmb zmm zo- zoa zob zom zoo zor zox zro zxx zzr zzx zzz