b-u bbb bbd bbi bbk bbm bbu bdb bdd bdi bdk bdm bdu bi- bib bid bii bik bim biu bkb bkk bkm bmb bmd bmi bmk bmm bmu bub bud bui buk bum buu dbb dbd dbi dbk dbm dbu ddb ddd ddi ddk ddm ddu di- dib did dii dik dim diu dkb dki dkk dkm dku dmb dmd dmi dmk dmm dmu dub dud dui duk dum i-d ibb ibd ibi ibk ibm ibu idb idd idi idk idm idu iib iid iii iim iiu ikb iki ikk iku im- imb imd imi imm imu iu- iub iud iui ium kbb kbd kbi kbk kbm kbu kdb kdk kdm kdu kib kid kii kik kim kiu kkb kki kkk kkm kku kmb kmd kmi kmk kmm kmu kub kud kui kuk kum kuu mbb mbd mbi mbk mbm mbu mdb mdd mdi mdk mdm mdu mi- mib mid mii mik mim miu mkb mkd mkk mkm mku mmb mmd mmi mmk mmm mmu mub mud mui muk mum muu ubb ubi ubk ubu udb udd udi udk udm udu uib uid uii uim uiu ukb uki ukk uku um- umb umd umi umm umu uum uuu