-er bbb bbd bbe bbf bbg bbi bbn bbr bdb bdd bde bdf bdg bdi bdr bdz be- beb bed bee bef beg bei ben ber bez bfb bfd bfe bff bfg bfi bfn bfr bfz bgb bgd bge bgf bgg bgi bgn bgr bgz bi- bib bid bie bif big bii bin bir biz bnb bnd bne bnf bng bni bnn bnr bnz brb brd bre brf brg bri brn brr brz bzd bze bzf bzn bzr bzz dbb dbd dbe dbf dbg dbi dbn dbr dbz ddb ddd dde ddf ddg ddi ddn ddr ddz de- deb ded dee def deg dei den der dez dfb dfd dfe dff dfg dfi dfn dfr dfz dgd dge dgf dgg dgi dgn dgr dgz di- dib did die dif dig dii din dir diz dnb dnd dne dnf dng dni dnn dnr dnz drb drd dre drg dri drn drr drz dzb dzd dze dzi dzr ebb ebd ebe ebf ebg ebi ebn ebr ed- edb edd ede edf edg edi edn edr eeb eed eee eef eeg een eer ef- efb efd efe eff efg efi efr egb egd ege egf egg egi egn egr eib eid eie eif eig eii ein eir en- enb end ene enf eng eni enn enr enz erb erd ere erf erg eri ern err erz eze ezf ezr ezz fbb fbd fbe fbf fbg fbi fbn fbr fdb fdd fde fdf fdg fdi fdn fdr feb fed fee fef feg fei fen fer fez ffd ffe fff ffg ffi ffn ffr ffz fgb fgd fge fgf fgg fgi fgn fgr fgz fib fid fie fif fig fii fin fir fiz fnb fnd fne fnf fng fni fnn fnr fnz frb frd fre frf frg fri frn frr fzd g-d gbd gbe gbf gbg gbi gbn gbr gbz gdb gdd gde gdf gdi gdn gdr ge- geb ged gee gef geg gei gen ger gez gfb gfd gfe gff gfi gfr gfz ggb ggd ggg ggi ggn ggr ggz gib gid gie gif gig gii gin gir giz gnb gnd gne gnf gni gnn gnr grb grd gre grf grg gri grn grr gzr i-d i-f ibb ibd ibe ibf ibg ibi ibn ibr ibz idb idd ide idf idg idi idn idr ie- ied iee ief ieg iei ien ier ifb ifd ife iff ifg ifi ifn ifr ifz igb igd ige igf igg igi ign igr iib iid iie iif iii iin iir in- inb ind ine inf ing ini inn inr ir- irb ird ire irf irg iri irn irr ize izi izz n-i nbb nbd nbe nbf nbg nbi nbn nbr ndb ndd nde ndf ndg ndi ndn ndr ne- neb ned nee nef neg nei nen ner nez nfb nfd nfe nff nfi nfn nfr ngb ngd nge ngf ngg ngi ngn nib nid nie nif nig nii nin nir niz nnb nne nnf nng nni nnn nnz nrb nrd nre nrf nrg nri nrn nrr nrz nzb nzd nze nzf nzg nzi nzz rbb rbd rbe rbf rbg rbi rbn rbr rdb rdd rde rdf rdg rdi rdn rdr re- reb red ree ref reg rei ren rer rez rfb rfd rfe rff rfg rfi rfn rfr rfz rgb rgd rge rgf rgg rgi rgn rgr rib rid rie rif rig rii rin rir riz rnb rnd rng rni rnn rnr rnz rrb rrd rrf rrg rri rrn rrr rzb rze z-g zbb zbr zdf zeb zed zee zef zen zer zez zfd zfn zfr zgb zgg zgi zib zid zie zif zig zin zir ziz znd zne znn zzr zzz