-ic b-u bbb bbc bbh bbi bbl bbr bbu bcb bcc bch bci bcl bcr bcu bhb bhc bhh bhi bhl bhr bhu bi- bib bic bih bii bil bir biu blb blc blh bli bll blr blu brb brh bri brl brr bru bub buc buh bui bul bur buu c-- cbb cbc cbh cbi cbl cbr cbu ccb ccc cch cci ccl ccr ccu ch- chb chc chh chi chl chr chu ci- cib cic cih cii cil cir ciu cl- clb clc clh cli cll clr clu crb crc crh cri crl crr cru cub cuc cuh cui cul cur cuu h-i hbb hbc hbh hbi hbl hbr hbu hcb hcc hch hci hcl hcr hhb hhc hhh hhi hhl hhr hhu hib hic hih hii hil hir hiu hlb hlc hlh hli hll hlr hlu hr- hrb hrc hrh hri hrl hrr hru hub huc huh hui hul hur huu ibb ibc ibh ibi ibl ibr ibu icb icc ich ici icl icr icu ihb ihc ihh ihi ihl ihr ihu iib iic iih iii iil iir iiu il- ilb ilc ilh ili ill ilr ilu ir- irb irc iri irl irr iru iu- iub iuc iui iur lbb lbc lbh lbi lbl lbr lbu lcb lcc lch lci lcl lcr lcu lhb lhc lhh lhi lhr lhu lib lic lih lii lil lir liu llb llc lli lll llr llu lrb lrc lrh lri lrr lru lub luc luh lui lul lur luu rbb rbc rbh rbi rbl rbr rbu rcb rcc rch rci rcl rcr rcu rh- rhb rhc rhh rhi rhl rhr rhu rib ric rih rii ril rir rlc rlh rli rll rlr rlu rrb rrc rrh rri rrl rrr rru rub ruc ruh rui rur ruu ubb ubc ubh ubi ubl ubr ubu ucb ucc uch uci ucl ucr ucu uhb uhc uhh uhi uhl uhr uhu uib uic uii uil uir uiu ulb ulc uli ull ulr ulu ur- urb urc uri url urr uru uuc uur uuu