-er bbb bbd bbe bbi bbk bbn bbr bbt bdb bdd bde bdi bdk bdr bdt be- beb bed bee bei bek ben ber bet bi- bib bid bie bii bik bin bir bit bkb bke bkk bkn bkr bkt bnb bnd bne bni bnk bnn bnr bnt brb brd bre bri brk brn brr brt btb btd bte bti btk btn btr btt dbb dbd dbe dbi dbk dbn dbr dbt ddb ddd dde ddi ddk ddn ddr ddt de- deb ded dee dei dek den der det di- dib did die dii dik din dir dit dkb dke dki dkk dkr dkt dnb dnd dne dni dnk dnn dnr dnt drb drd dre dri drk drn drr drt dtb dtd dte dti dtk dtn dtr dtt ebb ebd ebe ebi ebk ebn ebr ebt ed- edb edd ede edi edk edn edr edt eeb eed eee eek een eer eet eib eid eie eii eik ein eir eit ekb ekd eke eki ekr ekt en- enb end ene eni enk enn enr ent erb erd ere eri erk ern err ert etb etd ete eti etk etn etr ett i-d ibb ibd ibe ibi ibk ibn ibr ibt idb idd ide idi idk idn idr idt ie- ied iee iei iek ien ier iet iib iid iie iii iin iir iit ikb ike iki ikk ikr ikt in- inb ind ine ini ink inn inr int ir- irb ird ire iri irk irn irr irt itb itd ite iti itk itn itt k-t kbb kbd kbe kbi kbk kbn kbr kdb kde kdk kdr kdt ke- keb ked kee kei kek ken ker ket kib kid kie kii kik kin kir kit kkb kke kki kkk kkn kkr kkt kn- knd kne kni knk knn knr knt krd kri krk krn krr krt ktb kte ktk ktn ktr ktt n-i nbb nbd nbe nbi nbk nbn nbr nbt ndb ndd nde ndi ndk ndn ndr ndt ne- neb ned nee nei nek nen ner net nib nid nie nii nik nin nir nit nke nki nkk nkn nkr nkt nnb nne nni nnk nnn nnt nrb nrd nre nri nrk nrn nrr nrt ntb ntd nte nti ntk ntn ntr ntt rbb rbd rbe rbi rbk rbn rbr rbt rdb rdd rde rdi rdn rdr rdt re- reb red ree rei rek ren rer ret rib rid rie rii rik rin rir rit rkb rke rkk rkt rnb rnd rni rnn rnr rnt rrb rrd rri rrk rrn rrr rrt rtb rtd rte rti rtk rtn rtr rtt tbb tbd tbe tbi tbk tbn tbr tbt tdb tdd tde tdi tdk tdn tdr tdt te- teb ted tee tei tek ten ter tet tib tid tie tii tik tin tir tit tkb tke tkk tkr tkt tnb tnd tne tni tnk tnn tnr tnt trb trd tre tri trk trn trr trt ttb ttd tte tti ttk ttn ttr ttt