-ic b-u bbb bbc bbd bbe bbi bbn bbu bcb bcc bcd bce bci bcn bcu bdb bdc bdd bde bdi bdu be- beb bec bed bee bei ben beu bi- bib bic bid bie bii bin biu bnb bnc bnd bne bni bnn bnu bub buc bud bue bui bun buu c-- cbb cbc cbd cbe cbi cbn cbu ccb ccc ccd cce cci ccn ccu cdb cdc cdd cde cdi cdn cdu ce- ceb cec ced cee cei cen ceu ci- cib cic cid cie cii cin ciu cn- cnb cnc cnd cne cni cnn cnu cub cuc cud cue cui cun cuu dbb dbc dbd dbe dbi dbn dbu dcb dcc dcd dce dci dcn dcu ddb ddc ddd dde ddi ddn ddu de- deb dec ded dee dei den deu di- dib dic did die dii din diu dnb dnc dnd dne dni dnn dub duc dud due dui dun ebb ebc ebd ebe ebi ebn ebu ec- ecb ecc ecd ece eci ecn ecu ed- edb edc edd ede edi edn edu eeb eec eed eee een eib eic eid eie eii ein eiu en- enb enc end ene eni enn enu eu- eub euc eud eue eui eun i-d ibb ibc ibd ibe ibi ibn ibu icb icc icd ice ici icn icu idb idc idd ide idi idn idu ie- iec ied iee iei ien iib iic iid iie iii iin iiu in- inb inc ind ine ini inn inu iu- iub iuc iud iue iui n-i nbb nbc nbd nbe nbi nbn nbu ncb ncc ncd nce nci ncn ncu ndb ndc ndd nde ndi ndn ndu ne- neb nec ned nee nei nen neu nib nic nid nie nii nin niu nnb nnc nne nni nnn nnu nub nuc nud nue nui nun nuu ubb ubc ube ubi ubn ubu ucb ucc ucd uce uci ucn ucu udb udc udd ude udi udn udu ueb uec ued uee uei uen uib uic uid uie uii uin uiu un- unb unc und une uni unn unu uuc uue uun uuu