b-u bbb bbh bbi bbr bbs bbu bby bhb bhh bhi bhr bhs bhu bi- bib bih bii bir bis biu biy brb brh bri brr brs bru bry bsb bsh bsi bsr bss bsu bsy bub buh bui bur bus buu buy by- byh byi byr bys byu h-i hbb hbh hbi hbr hbs hbu hby hhb hhh hhi hhr hhs hhu hhy hib hih hii hir his hiu hr- hrb hrh hri hrr hrs hru hsb hsh hsi hsr hss hsu hsy hub huh hui hur hus huu huy hy- hyb hyh hyi hyr hys hyy ibb ibh ibi ibr ibs ibu iby ihb ihh ihi ihr ihs ihu ihy iib iih iii iir iis iiu ir- irb iri irr irs iru iry is- isb ish isi isr iss isu isy iu- iub iui iur ius iyr iys iyy rbb rbh rbi rbr rbs rbu rh- rhb rhh rhi rhr rhs rhu rib rih rii rir ris riy rrb rrh rri rrr rrs rru rsb rsh rsi rsr rss rsu rub ruh rui rur rus ruu ruy ry- ryr rys ryu ryy sbb sbh sbi sbr sbs sbu sby sh- shb shh shi shr shs shu shy sib sih sii sir sis siu sr- srb srh sri srr srs sry ss- ssb ssh ssi ssr sss ssu sub suh sui sur sus suu suy sy- syb syh syi syr sys syu ubb ubh ubi ubr ubs ubu uby uhb uhh uhi uhr uhs uhu uhy uib uii uir uis uiu ur- urb uri urr urs uru ury usb ush usi usr uss usu uur uus uuu uyi uys uyu ybi ybr ybs yby yhi yhs yhu yih yii yir yis yrs yru ysb ysi ysr yss ysu ysy yuh yui yur yus yuu yuy yyb yys yyu yyy