-er -ic b-u bbb bbc bbe bbh bbi bbn bbr bbu bcb bcc bce bch bci bcn bcr bcu be- beb bec bee beh bei ben ber beu bhb bhc bhe bhh bhi bhr bhu bi- bib bic bie bih bii bin bir biu bnb bnc bne bni bnn bnr bnu brb bre brh bri brn brr bru bub buc bue buh bui bun bur buu c-- cbb cbc cbe cbh cbi cbn cbr cbu ccb ccc cce cch cci ccn ccr ccu ce- ceb cec cee ceh cei cen cer ceu ch- chb chc che chh chi chn chr chu ci- cib cic cie cih cii cin cir ciu cn- cnb cnc cne cnh cni cnn cnr cnu crb crc cre crh cri crn crr cru cub cuc cue cuh cui cun cur cuu ebb ebc ebe ebh ebi ebn ebr ebu ec- ecb ecc ece ech eci ecn ecr ecu eeb eec eee een eer ehb ehc ehe ehh ehi ehn ehr ehu eib eic eie eii ein eir eiu en- enb enc ene enh eni enn enr enu erb erc ere erh eri ern err eru eu- eub euc eue eui eun eur h-i hbb hbc hbe hbh hbi hbn hbr hbu hcb hcc hce hch hci hcn hcr he- heb hec hee heh hei hen her heu hhb hhc hhe hhh hhi hhn hhr hhu hib hic hie hih hii hin hir hiu hnb hnc hne hnh hnn hnu hr- hrb hrc hre hrh hri hrn hrr hru hub huc hue huh hui hun hur huu ibb ibc ibe ibh ibi ibn ibr ibu icb icc ice ich ici icn icr icu ie- iec iee iei ien ier ihb ihc ihe ihh ihi ihn ihr ihu iib iic iie iih iii iin iir iiu in- inb inc ine inh ini inn inr inu ir- irb irc ire iri irn irr iru iu- iub iuc iue iui iur n-i nbb nbc nbe nbi nbn nbr nbu ncb ncc nce nch nci ncn ncr ncu ne- neb nec nee neh nei nen ner neu nhb nhc nhe nhh nhi nhn nhr nhu nib nic nie nih nii nin nir niu nnb nnc nne nnh nni nnn nnu nrb nrc nre nri nrn nrr nru nub nuc nue nuh nui nun nur nuu rbb rbc rbe rbh rbi rbn rbr rbu rcb rcc rce rch rci rcn rcr rcu re- reb rec ree reh rei ren rer reu rh- rhb rhc rhe rhh rhi rhn rhr rhu rib ric rie rih rii rin rir rnb rnc rnh rni rnn rnr rnu rrb rrc rrh rri rrn rrr rru rub ruc rue ruh rui run rur ruu ubb ubc ube ubh ubi ubn ubr ubu ucb ucc uce uch uci ucn ucr ucu ueb uec uee ueh uei uen uer uhb uhc uhe uhh uhi uhr uhu uib uic uie uii uin uir uiu un- unb unc une unh uni unn unr unu ur- urb urc ure uri urn urr uru uuc uue uun uur uuu