a-a a-b a-z aaa aab aad aam aar aaz ab- aba abb abd abm abr abz ad- ada adb add adm adr adz ama amb amd amm amr amz ar- ara arb ard arm arr arz az- aza azb azd azm azz baa bab bad bam bar baz bba bbb bbd bbm bbr bda bdb bdd bdm bdr bdz bma bmb bmd bmm bmr bmz bra brb brd brm brr brz bza bzd bzr bzz daa dab dad dam dar daz dba dbb dbd dbm dbr dbz dda ddb ddd ddm ddr ddz dma dmb dmd dmm dmr dmz dra drb drd drm drr drz dza dzb dzd dzr m-r maa mab mad mam mar maz mba mbb mbd mbm mbr mda mdb mdd mdm mdr mdz mma mmb mmd mmm mmr mmz mra mrb mrd mrm mrr mrz mza mzb mzm ra- raa rab rad ram rar raz rba rbb rbd rbm rbr rda rdb rdd rdm rdr rma rmb rmd rmm rmr rra rrb rrd rrm rrr rza rzb rzm zaa zab zad zam zar zaz zbb zbm zbr zdm zma zmb zmd zmm zzr zzz