-ic b-u bbb bbc bbd bbi bbn bbu bcb bcc bcd bci bcn bcu bdb bdc bdd bdi bdu bi- bib bic bid bii bin biu bnb bnc bnd bni bnn bnu bub buc bud bui bun buu c-- cbb cbc cbd cbi cbn cbu ccb ccc ccd cci ccn ccu cdb cdc cdd cdi cdn cdu ci- cib cic cid cii cin ciu cn- cnb cnc cnd cni cnn cnu cub cuc cud cui cun cuu dbb dbc dbd dbi dbn dbu dcb dcc dcd dci dcn dcu ddb ddc ddd ddi ddn ddu di- dib dic did dii din diu dnb dnc dnd dni dnn dub duc dud dui dun i-d ibb ibc ibd ibi ibn ibu icb icc icd ici icn icu idb idc idd idi idn idu iib iic iid iii iin iiu in- inb inc ind ini inn inu iu- iub iuc iud iui n-i nbb nbc nbd nbi nbn nbu ncb ncc ncd nci ncn ncu ndb ndc ndd ndi ndn ndu nib nic nid nii nin niu nnb nnc nni nnn nnu nub nuc nud nui nun nuu ubb ubc ubi ubn ubu ucb ucc ucd uci ucn ucu udb udc udd udi udn udu uib uic uid uii uin uiu un- unb unc und uni unn unu uuc uun uuu