a-a a-z aaa aad aam aan aaz ad- ada add adm adn adz ama amd amm amn amz an- ana and anm ann anz az- aza azd azm azn azz daa dad dam dan daz dda ddd ddm ddn ddz dma dmd dmm dmn dmz dna dnd dnm dnn dnz dza dzd maa mad mam man maz mda mdd mdm mdn mdz mma mmd mmm mmn mmz mna mnm mnn mnz mza mzm mzn naa nad nam nan naz nda ndd ndm ndn nma nmd nmm nmn nmz nna nnm nnn nnz nzd nzz zaa zad zam zan zaz zdm zma zmd zmm znd znn zzz