-ic b-u bbb bbc bbd bbi bbu bcb bcc bcd bci bcu bcz bdb bdc bdd bdi bdu bdz bi- bib bic bid bii biu biz bub buc bud bui buu buz bzd bzu bzz c-- cbb cbc cbd cbi cbu cbz ccb ccc ccd cci ccu ccz cdb cdc cdd cdi cdu cdz ci- cib cic cid cii ciu cub cuc cud cui cuu cuz cz- czc czd dbb dbc dbd dbi dbu dbz dcb dcc dcd dci dcu ddb ddc ddd ddi ddu ddz di- dib dic did dii diu diz dub duc dud dui duz dzb dzd dzi dzu i-d ibb ibc ibd ibi ibu ibz icb icc icd ici icu icz idb idc idd idi idu iib iic iid iii iiu iu- iub iuc iud iui iuz izi izu izz ubb ubc ubi ubu ucb ucc ucd uci ucu udb udc udd udi udu uib uic uid uii uiu uuc uuu uzb uzi uzu zbb zbc zib zid ziz zub zuc zud zui zuz zzz