-er -ey b-u bbb bbc bbe bbh bbr bbu bby bcb bcc bce bch bcr bcu bcy be- beb bec bee beh ber beu bey bhb bhc bhe bhh bhr bhu brb bre brh brr bru bry bub buc bue buh bur buu buy by- byc bye byh byr byu c-- cbb cbc cbe cbh cbr cbu cby ccb ccc cce cch ccr ccu ce- ceb cec cee ceh cer ceu cey ch- chb chc che chh chr chu chy crb crc cre crh crr cru cry cub cuc cue cuh cur cuu cuy cyb cyc cye cyr ebb ebc ebe ebh ebr ebu eby ec- ecb ecc ece ech ecr ecu eeb eec eee eer eey ehb ehc ehe ehh ehr ehu erb erc ere erh err eru ery eu- eub euc eue eur eyc eye eyr hbb hbc hbe hbh hbr hbu hby hcb hcc hce hch hcr hcy he- heb hec hee heh her heu hey hhb hhc hhe hhh hhr hhu hhy hr- hrb hrc hre hrh hrr hru hub huc hue huh hur huu huy hy- hyb hyc hye hyh hyr hyy rbb rbc rbe rbh rbr rbu rcb rcc rce rch rcr rcu re- reb rec ree reh rer reu rey rh- rhb rhc rhe rhh rhr rhu rrb rrc rrh rrr rru rub ruc rue ruh rur ruu ruy ry- ryc rye ryr ryu ryy ubb ubc ube ubh ubr ubu uby ucb ucc uce uch ucr ucu ueb uec uee ueh uer uey uhb uhc uhe uhh uhr uhu uhy ur- urb urc ure urr uru ury uuc uue uur uuu uyc uyu ybc ybe ybr yby ycc yce ych ycu ycy yeb yec yee yeh yer yey yhc yhe yhu yrc yre yru yue yuh yur yuu yuy yyb yyc yye yyu yyy