-er bbb bbd bbe bbg bbi bbk bbn bbr bdb bdd bde bdg bdi bdk bdr be- beb bed bee beg bei bek ben ber bgb bgd bge bgg bgi bgk bgn bgr bi- bib bid bie big bii bik bin bir bkb bke bkg bkk bkn bkr bnb bnd bne bng bni bnk bnn bnr brb brd bre brg bri brk brn brr dbb dbd dbe dbg dbi dbk dbn dbr ddb ddd dde ddg ddi ddk ddn ddr de- deb ded dee deg dei dek den der dgd dge dgg dgi dgk dgn dgr di- dib did die dig dii dik din dir dkb dke dkg dki dkk dkr dnb dnd dne dng dni dnk dnn dnr drb drd dre drg dri drk drn drr ebb ebd ebe ebg ebi ebk ebn ebr ed- edb edd ede edg edi edk edn edr eeb eed eee eeg eek een eer egb egd ege egg egi egn egr eib eid eie eig eii eik ein eir ekb ekd eke ekg eki ekr en- enb end ene eng eni enk enn enr erb erd ere erg eri erk ern err g-d gbd gbe gbg gbi gbk gbn gbr gdb gdd gde gdi gdk gdn gdr ge- geb ged gee geg gei gek gen ger ggb ggd ggg ggi ggn ggr gib gid gie gig gii gik gin gir gkb gkd gkn gnb gnd gne gni gnn gnr grb grd gre grg gri grk grn grr i-d ibb ibd ibe ibg ibi ibk ibn ibr idb idd ide idg idi idk idn idr ie- ied iee ieg iei iek ien ier igb igd ige igg igi igk ign igr iib iid iie iii iin iir ikb ike iki ikk ikr in- inb ind ine ing ini ink inn inr ir- irb ird ire irg iri irk irn irr kbb kbd kbe kbi kbk kbn kbr kdb kde kdg kdk kdr ke- keb ked kee keg kei kek ken ker kgb kgd kgi kib kid kie kig kii kik kin kir kkb kke kki kkk kkn kkr kn- knd kne kng kni knk knn knr krd krg kri krk krn krr n-i nbb nbd nbe nbg nbi nbk nbn nbr ndb ndd nde ndg ndi ndk ndn ndr ne- neb ned nee neg nei nek nen ner ngb ngd nge ngg ngi ngk ngn nib nid nie nig nii nik nin nir nke nki nkk nkn nkr nnb nne nng nni nnk nnn nrb nrd nre nrg nri nrk nrn nrr rbb rbd rbe rbg rbi rbk rbn rbr rdb rdd rde rdg rdi rdn rdr re- reb red ree reg rei rek ren rer rgb rgd rge rgg rgi rgk rgn rgr rib rid rie rig rii rik rin rir rkb rke rkg rkk rnb rnd rng rni rnn rnr rrb rrd rrg rri rrk rrn rrr