b-u bbb bbd bbe bbf bbi bbl bbu bdb bdd bde bdf bdi bdl bdu be- beb bed bee bef bei bel beu bfb bfd bfe bff bfi bfl bfu bi- bib bid bie bif bii bil biu blb bld ble blf bli bll blu bub bud bue buf bui bul buu dbb dbd dbe dbf dbi dbl dbu ddb ddd dde ddf ddi ddl ddu de- deb ded dee def dei del deu dfb dfd dfe dff dfi dfl dfu di- dib did die dif dii dil diu dl- dlb dld dle dlf dli dll dlu dub dud due duf dui dul ebb ebd ebe ebf ebi ebl ebu ed- edb edd ede edf edi edl edu eeb eed eee eef eel ef- efb efd efe eff efi efl eib eid eie eif eii eil eiu elb eld ele elf eli ell elu eu- eub eud eue euf eui eul fbb fbd fbe fbf fbi fbl fbu fdb fdd fde fdf fdi fdl fdu feb fed fee fef fei fel feu ffd ffe fff ffi ffl ffu fib fid fie fif fii fil fiu flb fld fle flf fli fll flu fub fud fue fuf fui ful fuu i-d i-f ibb ibd ibe ibf ibi ibl ibu idb idd ide idf idi idl idu ie- ied iee ief iei iel ifb ifd ife iff ifi ifl ifu iib iid iie iif iii iil iiu il- ilb ild ile ilf ili ill ilu iu- iub iud iue iui lbb lbd lbe lbf lbi lbl lbu ldb ldd lde ldf ldi ldl ldu leb led lee lef lei lel leu lfb lfd lfe lff lfi lfl lfu lib lid lie lif lii lil liu llb lld lle llf lli lll llu lub lud lue luf lui lul luu ubb ube ubf ubi ubl ubu udb udd ude udf udi udl udu ueb ued uee uef uei uel ufd ufe uff ufi ufl ufu uib uid uie uif uii uil uiu ulb uld ule ulf uli ull ulu uue uuu