-ic b-u bbb bbc bbd bbe bbi bbo bbu bcb bcc bcd bce bci bco bcu bdb bdc bdd bde bdi bdo bdu be- beb bec bed bee bei beo beu bi- bib bic bid bie bii bio biu bob boc bod boe boi boo bou bub buc bud bue bui buo buu c-- cbb cbc cbd cbe cbi cbo cbu ccb ccc ccd cce cci cco ccu cdb cdc cdd cde cdi cdo cdu ce- ceb cec ced cee cei ceo ceu ci- cib cic cid cie cii cio ciu co- cob coc cod coe coi coo cou cub cuc cud cue cui cuo cuu dbb dbc dbd dbe dbi dbo dbu dcb dcc dcd dce dci dco dcu ddb ddc ddd dde ddi ddo ddu de- deb dec ded dee dei deo deu di- dib dic did die dii dio diu dob doc dod doe doi doo dou dub duc dud due dui duo ebb ebc ebd ebe ebi ebo ebu ec- ecb ecc ecd ece eci eco ecu ed- edb edc edd ede edi edo edu eeb eec eed eee eeo eib eic eid eie eii eio eiu eo- eob eoc eod eoe eoi eoo eou eu- eub euc eud eue eui i-d ibb ibc ibd ibe ibi ibo ibu icb icc icd ice ici ico icu idb idc idd ide idi ido idu ie- iec ied iee iei iib iic iid iie iii iio iiu io- iob ioc iod ioe ioi ioo iou iu- iub iuc iud iue iui o-i ob- obb obc obd obe obi obo obu oc- ocb occ ocd oci oco ocu odb odc odd ode odi odo odu oeb oec oed oee oei oeo oib oic oid oie oii oio oiu oo- oob ooc ood ooi ooo ou- ouc oud oue oui ouo ubb ubc ube ubi ubo ubu ucb ucc ucd uce uci uco ucu udb udc udd ude udi udo udu ueb uec ued uee uei uib uic uid uie uii uio uiu uob uoc uod uoe uoo uuc uue uuu