b-u bbb bbd bbe bbi bbm bbu bdb bdd bde bdi bdm bdu be- beb bed bee bei bem beu bi- bib bid bie bii bim biu bmb bmd bme bmi bmm bmu bub bud bue bui bum buu dbb dbd dbe dbi dbm dbu ddb ddd dde ddi ddm ddu de- deb ded dee dei dem deu di- dib did die dii dim diu dmb dmd dme dmi dmm dmu dub dud due dui dum ebb ebd ebe ebi ebm ebu ed- edb edd ede edi edm edu eeb eed eee eem eib eid eie eii eim eiu em- emb emd eme emi emm emu eu- eub eud eue eui i-d ibb ibd ibe ibi ibm ibu idb idd ide idi idm idu ie- ied iee iei iem iib iid iie iii iim iiu im- imb imd ime imi imm imu iu- iub iud iue iui ium mbb mbd mbe mbi mbm mbu mdb mdd mde mdi mdm mdu meb med mee mei mem meu mi- mib mid mie mii mim miu mmb mmd mme mmi mmm mmu mub mud mue mui mum muu ubb ube ubi ubu udb udd ude udi udm udu ueb ued uee uei uem uib uid uie uii uim uiu um- umb umd ume umi umm umu uue uum uuu