b-u bbb bbd bbe bbf bbi bbl bbn bbu bdb bdd bde bdf bdi bdl bdu be- beb bed bee bef bei bel ben beu bfb bfd bfe bff bfi bfl bfn bfu bi- bib bid bie bif bii bil bin biu blb bld ble blf bli bll bln blu bnb bnd bne bnf bni bnl bnn bnu bub bud bue buf bui bul bun buu dbb dbd dbe dbf dbi dbl dbn dbu ddb ddd dde ddf ddi ddl ddn ddu de- deb ded dee def dei del den deu dfb dfd dfe dff dfi dfl dfn dfu di- dib did die dif dii dil din diu dl- dlb dld dle dlf dli dll dlu dnb dnd dne dnf dni dnl dnn dub dud due duf dui dul dun ebb ebd ebe ebf ebi ebl ebn ebu ed- edb edd ede edf edi edl edn edu eeb eed eee eef eel een ef- efb efd efe eff efi efl eib eid eie eif eii eil ein eiu elb eld ele elf eli ell eln elu en- enb end ene enf eni enl enn enu eu- eub eud eue euf eui eul eun fbb fbd fbe fbf fbi fbl fbn fbu fdb fdd fde fdf fdi fdl fdn fdu feb fed fee fef fei fel fen feu ffd ffe fff ffi ffl ffn ffu fib fid fie fif fii fil fin fiu flb fld fle flf fli fll fln flu fnb fnd fne fnf fni fnl fnn fnu fub fud fue fuf fui ful fun fuu i-d i-f ibb ibd ibe ibf ibi ibl ibn ibu idb idd ide idf idi idl idn idu ie- ied iee ief iei iel ien ifb ifd ife iff ifi ifl ifn ifu iib iid iie iif iii iil iin iiu il- ilb ild ile ilf ili ill iln ilu in- inb ind ine inf ini inl inn inu iu- iub iud iue iui lbb lbd lbe lbf lbi lbl lbu ldb ldd lde ldf ldi ldl ldn ldu leb led lee lef lei lel len leu lfb lfd lfe lff lfi lfl lfn lfu lib lid lie lif lii lil lin liu llb lld lle llf lli lll lln llu lnb lnd lne lni lnl lnn lnu lub lud lue luf lui lul lun luu n-i nbb nbd nbe nbf nbi nbl nbn nbu ndb ndd nde ndf ndi ndl ndn ndu ne- neb ned nee nef nei nel nen neu nfb nfd nfe nff nfi nfl nfn nfu nib nid nie nif nii nil nin niu nlb nld nle nlf nli nll nln nlu nnb nne nnf nni nnl nnn nnu nub nud nue nui nul nun nuu ubb ube ubf ubi ubl ubn ubu udb udd ude udf udi udl udn udu ueb ued uee uef uei uel uen ufd ufe uff ufi ufl ufn ufu uib uid uie uif uii uil uin uiu ulb uld ule ulf uli ull uln ulu un- unb und une unf uni unl unn unu uue uun uuu