bbb bbg bbh bbo bby bgb bgg bgh bgo bgz bhb bhg bhh bho bob bog boh boo boy boz by- byg byh byo byz bzh bzo bzz gbg gbh gbo gby gbz ggb ggg ggh ggo ggz ghb ghg ghh gho ghz gob gog goh goo goy goz gy- gyb gyo gzo hbb hbg hbh hbo hby hbz hgb hgg hgh hgo hgy hhb hhg hhh hho hhy hhz hob hog hoh hoo hoy hy- hyb hyg hyh hyo hyy hzo hzy ob- obb obg obh obo oby ogg ogh ogo ogy ohg ohh oho oo- oob oog ooh ooo oyo ozo ozz ybg yby ybz ygo yob yog yoo yoy yyb yyg yyy yyz yzb yzy z-g zbb zby zgb zgg zho zo- zob zog zoo zzy zzz