bbb bbd bbe bbi bbm bdb bdd bde bdi bdm be- beb bed bee bei bem bi- bib bid bie bii bim bmb bmd bme bmi bmm dbb dbd dbe dbi dbm ddb ddd dde ddi ddm de- deb ded dee dei dem di- dib did die dii dim dmb dmd dme dmi dmm 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 i-d ibb ibd ibe ibi ibm idb idd ide idi idm ie- ied iee iei iem iib iid iie iii iim im- imb imd ime imi imm mbb mbd mbe mbi mbm mdb mdd mde mdi mdm meb med mee mei mem mi- mib mid mie mii mim mmb mmd mme mmi mmm