-ic bbb bbc bbg bbi bbo bcb bcc bcg bci bco bcz bgb bgc bgg bgi bgo bgz bi- bib bic big bii bio biz bob boc bog boi boo boz bzo bzz c-- cbb cbc cbg cbi cbo cbz ccb ccc ccg cci cco ccz cgb cgc cgg cgi cgo ci- cib cic cig cii cio co- cob coc cog coi coo coz cz- czc czo gbc gbg gbi gbo gbz gcb gcc gcg gci gco ggb ggc ggg ggi ggo ggz gib gic gig gii gio giz gob goc gog goi goo goz gzo ibb ibc ibg ibi ibo ibz icb icc icg ici ico icz igb igc igg igi igo iib iic iii iio io- iob ioc iog ioi ioo izi izo izz o-i ob- obb obc obg obi obo oc- ocb occ ocg oci oco ocz ogc ogg ogi ogo oib oic oii oio oiz oo- oob ooc oog ooi ooo ozo ozz z-g zbb zbc zco zgb zgg zgi zib zig zio ziz zo- zob zoc zog zoi zoo zzz