a-a a-b a-z aaa aab aad aae aak aam aaz ab- aba abb abd abe abk abm abz ad- ada adb add ade adk adm adz aea aeb aed aee aek aem aez aka akb akd ake akk akm ama amb amd ame amk amm amz az- aza azb azd aze azm azz baa bab bad bae bak bam baz bba bbb bbd bbe bbk bbm bda bdb bdd bde bdk bdm bdz be- bea beb bed bee bek bem bez bka bkb bke bkk bkm bma bmb bmd bme bmk bmm bmz bza bzd bze bzz daa dab dad dae dak dam daz dba dbb dbd dbe dbk dbm dbz dda ddb ddd dde ddk ddm ddz de- dea deb ded dee dek dem dez dka dkb dke dkk dkm dma dmb dmd dme dmk dmm dmz dza dzb dzd dze eaa eab ead eae eak eam eaz eba ebb ebd ebe ebk ebm ed- eda edb edd ede edk edm eea eeb eed eee eek eem eka ekb ekd eke em- ema emb emd eme emk emm eze ezz k-z ka- kaa kab kad kae kak kam kaz kba kbb kbd kbe kbk kbm kbz kda kdb kde kdk kdm ke- kea keb ked kee kek kem kez kkb kke kkk kkm kma kmb kmd kme kmk kmm kmz maa mab mad mae mak mam maz mba mbb mbd mbe mbk mbm mda mdb mdd mde mdk mdm mdz mea meb med mee mek mem mez mka mkb mkd mke mkk mkm mkz mma mmb mmd mme mmk mmm mmz mza mzb mzm zaa zab zad zak zam zaz zbb zbm zdm zea zeb zed zee zek zem zez zka zma zmb zmd zmk zmm zzz