-er -ic b-u bbb bbc bbe bbh bbi bbm bbr bbu bcb bcc bce bch bci bcm bcr bcu be- beb bec bee beh bei bem ber beu bhb bhc bhe bhh bhi bhm bhr bhu bi- bib bic bie bih bii bim bir biu bmb bmc bme bmh bmi bmm bmr bmu brb bre brh bri brm brr bru bub buc bue buh bui bum bur buu c-- cbb cbc cbe cbh cbi cbm cbr cbu ccb ccc cce cch cci ccm ccr ccu ce- ceb cec cee ceh cei cem cer ceu ch- chb chc che chh chi chm chr chu ci- cib cic cie cih cii cim cir ciu cmb cmc cme cmh cmi cmm cmr cmu crb crc cre crh cri crm crr cru cub cuc cue cuh cui cum cur cuu ebb ebc ebe ebh ebi ebm ebr ebu ec- ecb ecc ece ech eci ecm ecr ecu eeb eec eee eem eer ehb ehc ehe ehh ehi ehm ehr ehu eib eic eie eii eim eir eiu em- emb emc eme emh emi emm emr emu erb erc ere erh eri erm err eru eu- eub euc eue eui eur h-i hbb hbc hbe hbh hbi hbm hbr hbu hcb hcc hce hch hci hcm hcr he- heb hec hee heh hei hem her heu hhb hhc hhe hhh hhi hhm hhr hhu hib hic hie hih hii him hir hiu hmb hmc hme hmh hmi hmm hmr hmu hr- hrb hrc hre hrh hri hrm hrr hru hub huc hue huh hui hum hur huu ibb ibc ibe ibh ibi ibm ibr ibu icb icc ice ich ici icm icr icu ie- iec iee iei iem ier ihb ihc ihe ihh ihi ihm ihr ihu iib iic iie iih iii iim iir iiu im- imb imc ime imh imi imm imu ir- irb irc ire iri irm irr iru iu- iub iuc iue iui ium iur m-r mbb mbc mbe mbh mbi mbm mbr mbu mc- mcb mcc mce mch mci mcm mcr mcu meb mec mee meh mei mem mer meu mhc mhh mhi mhm mhr mhu mi- mib mic mie mih mii mim mir miu mmb mmc mme mmh mmi mmm mmr mmu mrb mrc mre mrh mri mrm mrr mru mub muc mue muh mui mum mur muu rbb rbc rbe rbh rbi rbm rbr rbu rcb rcc rce rch rci rcm rcr rcu re- reb rec ree reh rei rem rer reu rh- rhb rhc rhe rhh rhi rhm rhr rhu rib ric rie rih rii rim rir rmb rmc rme rmh rmi rmm rmr rrb rrc rrh rri rrm rrr rru rub ruc rue ruh rui rum rur ruu ubb ubc ube ubh ubi ubr ubu ucb ucc uce uch uci ucm ucr ucu ueb uec uee ueh uei uem uer uhb uhc uhe uhh uhi uhm uhr uhu uib uic uie uii uim uir uiu um- umb umc ume umh umi umm umr umu ur- urb urc ure uri urm urr uru uuc uue uum uur uuu