-er b-u bbb bbd bbe bbf bbi bbn bbr bbu bdb bdd bde bdf bdi bdr bdu be- beb bed bee bef bei ben ber beu bfb bfd bfe bff bfi bfn bfr bfu bi- bib bid bie bif bii bin bir biu bnb bnd bne bnf bni bnn bnr bnu brb brd bre brf bri brn brr bru bub bud bue buf bui bun bur buu dbb dbd dbe dbf dbi dbn dbr dbu ddb ddd dde ddf ddi ddn ddr ddu de- deb ded dee def dei den der deu dfb dfd dfe dff dfi dfn dfr dfu di- dib did die dif dii din dir diu dnb dnd dne dnf dni dnn dnr drb drd dre dri drn drr dru dub dud due duf dui dun dur ebb ebd ebe ebf ebi ebn ebr ebu ed- edb edd ede edf edi edn edr edu eeb eed eee eef een eer ef- efb efd efe eff efi efr eib eid eie eif eii ein eir eiu en- enb end ene enf eni enn enr enu erb erd ere erf eri ern err eru eu- eub eud eue euf eui eun eur fbb fbd fbe fbf fbi fbn fbr fbu fdb fdd fde fdf fdi fdn fdr fdu feb fed fee fef fei fen fer feu ffd ffe fff ffi ffn ffr ffu fib fid fie fif fii fin fir fiu fnb fnd fne fnf fni fnn fnr fnu frb frd fre frf fri frn frr fru fub fud fue fuf fui fun fur fuu i-d i-f ibb ibd ibe ibf ibi ibn ibr ibu idb idd ide idf idi idn idr idu ie- ied iee ief iei ien ier ifb ifd ife iff ifi ifn ifr ifu iib iid iie iif iii iin iir iiu in- inb ind ine inf ini inn inr inu ir- irb ird ire irf iri irn irr iru iu- iub iud iue iui iur n-i nbb nbd nbe nbf nbi nbn nbr nbu ndb ndd nde ndf ndi ndn ndr ndu ne- neb ned nee nef nei nen ner neu nfb nfd nfe nff nfi nfn nfr nfu nib nid nie nif nii nin nir niu nnb nne nnf nni nnn nnu nrb nrd nre nrf nri nrn nrr nru nub nud nue nui nun nur nuu rbb rbd rbe rbf rbi rbn rbr rbu rdb rdd rde rdf rdi rdn rdr rdu re- reb red ree ref rei ren rer reu rfb rfd rfe rff rfi rfn rfr rfu rib rid rie rif rii rin rir rnb rnd rni rnn rnr rnu rrb rrd rrf rri rrn rrr rru rub rud rue ruf rui run rur ruu ubb ube ubf ubi ubn ubr ubu udb udd ude udf udi udn udr udu ueb ued uee uef uei uen uer ufd ufe uff ufi ufn ufr ufu uib uid uie uif uii uin uir uiu un- unb und une unf uni unn unr unu ur- urb urd ure urf uri urn urr uru uue uun uur uuu