bbb bbd bbe bbm bbo bdb bdd bde bdm bdo bdz be- beb bed bee bem beo bez bmb bmd bme bmm bmo bmz bob bod boe bom boo boz bzd bze bzo bzz dbb dbd dbe dbm dbo dbz ddb ddd dde ddm ddo ddz de- deb ded dee dem deo dez dmb dmd dme dmm dmo dmz dob dod doe dom doo doz dzb dzd dze dzo ebb ebd ebe ebm ebo ed- edb edd ede edm edo eeb eed eee eem eeo em- emb emd eme emm emo eo- eob eod eoe eom eoo eze ezo ezz m-o mbb mbd mbe mbm mbo mdb mdd mde mdm mdo mdz meb med mee mem meo mez mmb mmd mme mmm mmo mmz mob mod moe mom moo moz mzb mzm ob- obb obd obe obm obo odb odd ode odm odo oeb oed oee oem oeo om- omb omd ome omm omo omz oo- oob ood oom ooo oze ozm ozo ozz zbb zbm zdm zeb zed zee zem zeo zez zmb zmd zmm zo- zob zod zoe zom zoo zzz