bbb bbd bbe bbf bbg bbi bbn bdb bdd bde bdf bdg bdi be- beb bed bee bef beg bei ben bfb bfd bfe bff bfg bfi bfn bgb bgd bge bgf bgg bgi bgn bi- bib bid bie bif big bii bin bnb bnd bne bnf bng bni bnn dbb dbd dbe dbf dbg dbi dbn ddb ddd dde ddf ddg ddi ddn de- deb ded dee def deg dei den dfb dfd dfe dff dfg dfi dfn dgd dge dgf dgg dgi dgn di- dib did die dif dig dii din dnb dnd dne dnf dng dni dnn ebb ebd ebe ebf ebg ebi ebn ed- edb edd ede edf edg edi edn eeb eed eee eef eeg een ef- efb efd efe eff efg efi egb egd ege egf egg egi egn eib eid eie eif eig eii ein en- enb end ene enf eng eni enn fbb fbd fbe fbf fbg fbi fbn fdb fdd fde fdf fdg fdi fdn feb fed fee fef feg fei fen ffd ffe fff ffg ffi ffn fgb fgd fge fgf fgg fgi fgn fib fid fie fif fig fii fin fnb fnd fne fnf fng fni fnn g-d gbd gbe gbf gbg gbi gbn gdb gdd gde gdf gdi gdn ge- geb ged gee gef geg gei gen gfb gfd gfe gff gfi ggb ggd ggg ggi ggn gib gid gie gif gig gii gin gnb gnd gne gnf gni gnn i-d i-f ibb ibd ibe ibf ibg ibi ibn idb idd ide idf idg idi idn ie- ied iee ief ieg iei ien ifb ifd ife iff ifg ifi ifn igb igd ige igf igg igi ign iib iid iie iif iii iin in- inb ind ine inf ing ini inn n-i nbb nbd nbe nbf nbg nbi nbn ndb ndd nde ndf ndg ndi ndn ne- neb ned nee nef neg nei nen nfb nfd nfe nff nfi nfn ngb ngd nge ngf ngg ngi ngn nib nid nie nif nig nii nin nnb nne nnf nng nni nnn