-ic bbb bbc bbd bbe bbf bbi bbn bcb bcc bcd bce bcf bci bcn bdb bdc bdd bde bdf bdi be- beb bec bed bee bef bei ben bfb bfc bfd bfe bff bfi bfn bi- bib bic bid bie bif bii bin bnb bnc bnd bne bnf bni bnn c-- cbb cbc cbd cbe cbf cbi cbn ccb ccc ccd cce ccf cci ccn cdb cdc cdd cde cdf cdi cdn ce- ceb cec ced cee cef cei cen cfb cfc cfd cfe cff cfi cfn ci- cib cic cid cie cif cii cin cn- cnb cnc cnd cne cnf cni cnn dbb dbc dbd dbe dbf dbi dbn dcb dcc dcd dce dcf dci dcn ddb ddc ddd dde ddf ddi ddn de- deb dec ded dee def dei den dfb dfc dfd dfe dff dfi dfn di- dib dic did die dif dii din dnb dnc dnd dne dnf dni dnn ebb ebc ebd ebe ebf ebi ebn ec- ecb ecc ecd ece ecf eci ecn ed- edb edc edd ede edf edi edn eeb eec eed eee eef een ef- efb efc efd efe eff efi eib eic eid eie eif eii ein en- enb enc end ene enf eni enn fbb fbc fbd fbe fbf fbi fbn fcb fcc fcd fce fcf fci fcn fdb fdc fdd fde fdf fdi fdn feb fec fed fee fef fei fen ffc ffd ffe fff ffi ffn fib fic fid fie fif fii fin fnb fnc fnd fne fnf fni fnn i-d i-f ibb ibc ibd ibe ibf ibi ibn icb icc icd ice icf ici icn idb idc idd ide idf idi idn ie- iec ied iee ief iei ien ifb ifc ifd ife iff ifi ifn iib iic iid iie iif iii iin in- inb inc ind ine inf ini inn n-i nbb nbc nbd nbe nbf nbi nbn ncb ncc ncd nce ncf nci ncn ndb ndc ndd nde ndf ndi ndn ne- neb nec ned nee nef nei nen nfb nfc nfd nfe nff nfi nfn nib nic nid nie nif nii nin nnb nnc nne nnf nni nnn