rrb rrc rrh rrl rrm rrp rrr rru rub ruc rue ruh rum ruo rup rur ruu ruy ry- ryc rye rym ryo ryr ryu ryy ubb ubc ube ubh ubl ubo ubp ubr ubu uby ucb ucc uce uch ucl ucm uco ucp ucr ucu ueb uec uee ueh uel uem uep uer uey uhb uhc uhe uhh uhl uhm uho uhp uhr uhu uhy ulb ulc ule ull ulm ulo ulp ulr ulu uly um- umb umc ume umh uml umm umo ump umr umu uob uoc uoe uol uom uoo uop uor up- upb upc upe uph upm upo upp upr upu ur- urb urc ure url urm uro urp urr uru ury uuc uue uum uur uuu uyc uyo uyu ybc ybe ybl ybm ybp ybr yby ycc yce ych ycl yco ycp ycu ycy yeb yec yee yeh yel yem yeo yep yer yey yhc yhe yhu ylc yle yll ylm ylr yly ymc yme yml ymm ymo yob yoc yoe yol yom yoo yop yor you yoy ypl ypo ypu yrc yre yro yrp yru yue yuh yul yum yuo yup yur yuu yuy yyb yyc yye yyu yyy