-ic b-u bbb bbc bbd bbe bbi bbu bcb bcc bcd bce bci bcu bcz bdb bdc bdd bde bdi bdu bdz be- beb bec bed bee bei beu bez bi- bib bic bid bie bii biu biz bub buc bud bue bui buu buz bzd bze bzu bzz c-- cbb cbc cbd cbe cbi cbu cbz ccb ccc ccd cce cci ccu ccz cdb cdc cdd cde cdi cdu cdz ce- ceb cec ced cee cei ceu cez ci- cib cic cid cie cii ciu cub cuc cud cue cui cuu cuz cz- czc czd cze dbb dbc dbd dbe dbi dbu dbz dcb dcc dcd dce dci dcu ddb ddc ddd dde ddi ddu ddz de- deb dec ded dee dei deu dez di- dib dic did die dii diu diz dub duc dud due dui duz dzb dzd dze dzi dzu ebb ebc ebd ebe ebi ebu ec- ecb ecc ecd ece eci ecu ed- edb edc edd ede edi edu eeb eec eed eee eib eic eid eie eii eiu eu- eub euc eud eue eui eze ezz i-d ibb ibc ibd ibe ibi ibu ibz icb icc icd ice ici icu icz idb idc idd ide idi idu ie- iec ied iee iei iib iic iid iie iii iiu iu- iub iuc iud iue iui iuz ize izi izu izz ubb ubc ube ubi ubu ucb ucc ucd uce uci ucu udb udc udd ude udi udu ueb uec ued uee uei uib uic uid uie uii uiu uuc uue uuu uzb uzi uzu zbb zbc zce zeb zec zed zee zez zib zid zie ziz zub zuc zud zui zuz zzz