-ic b-u bbb bbc bbg bbi bbk bbo bbu bcb bcc bcg bci bck bco bcu bgb bgc bgg bgi bgk bgo bgu bi- bib bic big bii bik bio biu bkb bkc bkg bkk bko bob boc bog boi bok boo bou bub buc bug bui buk buo buu c-- cbb cbc cbg cbi cbk cbo cbu ccb ccc ccg cci cck cco ccu cgb cgc cgg cgi cgo cgu ci- cib cic cig cii cik cio ciu ckb ckc cki cko co- cob coc cog coi cok coo cou cub cuc cug cui cuk cuo cuu gbc gbg gbi gbk gbo gbu gcb gcc gcg gci gck gco gcu ggb ggc ggg ggi ggo ggu gib gic gig gii gik gio giu gkb gko gob goc gog goi gok goo gou gu- gub guc gug gui guk guo guu ibb ibc ibg ibi ibk ibo ibu icb icc icg ici ick ico icu igb igc igg igi igk igo igu iib iic iii iio iiu ikb ikc iki ikk iko iku io- iob ioc iog ioi ioo iou iu- iub iuc iug iui kbb kbc kbi kbk kbo kbu kcb kcc kcg kci kck kcu kgb kgc kgi kgo kgu kib kic kig kii kik kio kiu kkb kkc kki kkk kku kob koc kog koi kok koo kou kub kuc kug kui kuk kuu o-i ob- obb obc obg obi obk obo obu oc- ocb occ ocg oci ock oco ocu ogc ogg ogi ogo oib oic oii oik oio oiu okb okc okg oki okk oko oku oo- oob ooc oog ooi ook ooo ou- ouc oui ouk ouo ubb ubc ubg ubi ubk ubo ubu ucb ucc ucg uci uck uco ucu ugb ugc ugg ugi ugk ugo ugu uib uic uig uii uio uiu ukb ukc uki ukk uku uob uoc uog uok uoo uuc uug uuu