bbb bbe bbf bbi bbk bbn bbt be- beb bee bef bei bek ben bet bfb bfe bff bfi bfn bft bi- bib bie bif bii bik bin bit bkb bke bkf bkk bkn bkt bnb bne bnf bni bnk bnn bnt btb bte btf bti btk btn btt ebb ebe ebf ebi ebk ebn ebt eeb eee eef eek een eet ef- efb efe eff efi eft eib eie eif eii eik ein eit ekb eke ekf eki ekt en- enb ene enf eni enk enn ent etb ete etf eti etk etn ett fbb fbe fbf fbi fbk fbn fbt feb fee fef fei fek fen fet ffe fff ffi ffk ffn fft fib fie fif fii fik fin fit fkb fkf fki fkk fkt fnb fne fnf fni fnk fnn fnt ftb fte ftf fti ftk ftn ftt i-f ibb ibe ibf ibi ibk ibn ibt ie- iee ief iei iek ien iet ifb ife iff ifi ifn ift iib iie iif iii iin iit ikb ike ikf iki ikk ikt in- inb ine inf ini ink inn int itb ite itf iti itk itn itt k-t kbb kbe kbf kbi kbk kbn ke- keb kee kef kei kek ken ket kff kfi kib kie kif kii kik kin kit kkb kke kki kkk kkn kkt kn- kne knf kni knk knn knt ktb kte ktf ktk ktn ktt n-i nbb nbe nbf nbi nbk nbn nbt ne- neb nee nef nei nek nen net nfb nfe nff nfi nfk nfn nft nib nie nif nii nik nin nit nke nkf nki nkk nkn nkt nnb nne nnf nni nnk nnn nnt ntb nte ntf nti ntk ntn ntt tbb tbe tbf tbi tbk tbn tbt te- teb tee tef tei tek ten tet tfb tfe tff tfi tfk tfn tft tib tie tif tii tik tin tit tkb tke tkk tkt tnb tne tnf tni tnk tnn tnt ttb tte ttf tti ttk ttn ttt