b-u bbb bbd bbe bbf bbl bbm bbu bdb bdd bde bdf bdl bdm bdu bdz be- beb bed bee bef bel bem beu bez bfb bfd bfe bff bfl bfm bfu bfz blb bld ble blf bll blm blu blz bmb bmd bme bmf bml bmm bmu bmz bub bud bue buf bul bum buu buz bzd bze bzf bzu bzz dbb dbd dbe dbf dbl dbm dbu dbz ddb ddd dde ddf ddl ddm ddu ddz de- deb ded dee def del dem deu dez dfb dfd dfe dff dfl dfm dfu dfz dl- dlb dld dle dlf dll dlm dlu dmb dmd dme dmf dml dmm dmu dmz dub dud due duf dul dum duz dzb dzd dze dzu ebb ebd ebe ebf ebl ebm ebu ed- edb edd ede edf edl edm edu eeb eed eee eef eel eem ef- efb efd efe eff efl efm elb eld ele elf ell elm elu elz em- emb emd eme emf eml emm emu eu- eub eud eue euf eul eze ezf ezz fbb fbd fbe fbf fbl fbm fbu fdb fdd fde fdf fdl fdm fdu feb fed fee fef fel fem feu fez ffd ffe fff ffl ffm ffu ffz flb fld fle flf fll flm flu fmb fmd fme fmf fml fmm fmu fub fud fue fuf ful fum fuu fzd lbb lbd lbe lbf lbl lbm lbu ldb ldd lde ldf ldl ldm ldu leb led lee lef lel lem leu lez lfb lfd lfe lff lfl lfm lfu llb lld lle llf lll llm llu llz lmb lmd lme lmf lml lmm lmu lub lud lue luf lul lum luu luz lzu m-f mbb mbd mbe mbf mbl mbm mbu mdb mdd mde mdf mdl mdm mdu mdz meb med mee mef mel mem meu mez mfb mfd mfe mff mfl mfm mfu mfz mlb mld mle mlf mll mlm mlu mmb mmd mme mmf mml mmm mmu mmz mub mud mue muf mul mum muu mzb mzf mzm ubb ube ubf ubl ubu udb udd ude udf udl udm udu ueb ued uee uef uel uem ufd ufe uff ufl ufm ufu ulb uld ule ulf ull ulm ulu um- umb umd ume umf uml umm umu uue uum uuu uzb uzu zbb zbl zbm zdf zdm zeb zed zee zef zel zem zez zfd zmb zmd zmm zub zud zul zum zuz zzz