bbb bbd bbi bbm bbn bdb bdd bdi bdm bi- bib bid bii bim bin bmb bmd bmi bmm bmn bnb bnd bni bnn dbb dbd dbi dbm dbn ddb ddd ddi ddm ddn di- dib did dii dim din dmb dmd dmi dmm dmn dnb dnd dni dnm dnn i-d ibb ibd ibi ibm ibn idb idd idi idm idn iib iid iii iim iin im- imb imd imi imm imn in- inb ind ini inm inn mbb mbd mbi mbm mdb mdd mdi mdm mdn mi- mib mid mii mim min mmb mmd mmi mmm mmn mnb mni mnm mnn n-i nbb nbd nbi nbm nbn ndb ndd ndi ndm ndn nib nid nii nim nin nmb nmd nmi nmm nmn nnb nni nnm nnn