-ic b-u bbb bbc bbh bbi bbr bbu bcb bcc bch bci bcr bcu bhb bhc bhh bhi bhr bhu bi- bib bic bih bii bir biu brb brh bri brr bru bub buc buh bui bur buu c-- cbb cbc cbh cbi cbr cbu ccb ccc cch cci ccr ccu ch- chb chc chh chi chr chu ci- cib cic cih cii cir ciu crb crc crh cri crr cru cub cuc cuh cui cur cuu h-i hbb hbc hbh hbi hbr hbu hcb hcc hch hci hcr hhb hhc hhh hhi hhr hhu hib hic hih hii hir hiu hr- hrb hrc hrh hri hrr hru hub huc huh hui hur huu ibb ibc ibh ibi ibr ibu icb icc ich ici icr icu ihb ihc ihh ihi ihr ihu iib iic iih iii iir iiu ir- irb irc iri irr iru iu- iub iuc iui iur rbb rbc rbh rbi rbr rbu rcb rcc rch rci rcr rcu rh- rhb rhc rhh rhi rhr rhu rib ric rih rii rir rrb rrc rrh rri rrr rru rub ruc ruh rui rur ruu ubb ubc ubh ubi ubr ubu ucb ucc uch uci ucr ucu uhb uhc uhh uhi uhr uhu uib uic uii uir uiu ur- urb urc uri urr uru uuc uur uuu