bbb bbd bbe bbi bbm bdb bdd bde bdi bdm bdz be- beb bed bee bei bem bez bi- bib bid bie bii bim biz bmb bmd bme bmi bmm bmz bzd bze bzz dbb dbd dbe dbi dbm dbz ddb ddd dde ddi ddm ddz de- deb ded dee dei dem dez di- dib did die dii dim diz dmb dmd dme dmi dmm dmz dzb dzd dze dzi ebb ebd ebe ebi ebm ed- edb edd ede edi edm eeb eed eee eem eib eid eie eii eim em- emb emd eme emi emm eze ezz i-d ibb ibd ibe ibi ibm ibz idb idd ide idi idm ie- ied iee iei iem iib iid iie iii iim im- imb imd ime imi imm imz ize izi izm izz mbb mbd mbe mbi mbm mdb mdd mde mdi mdm mdz meb med mee mei mem mez mi- mib mid mie mii mim miz mmb mmd mme mmi mmm mmz mzb mzi mzm zbb zbm zdm zeb zed zee zem zez zib zid zie zim ziz zmb zmd zmm zzz