rra rrb rrg rrh rri rrk rrm rrn rrr rrs rru rsa rsb rsg rsh rsi rsk rsm rsn rsr rss rsu rua rub rug ruh rui ruk rum run rur rus ruu saa sab sag sah sai sak sam san sar sas sau sba sbb sbg sbh sbi sbk sbm sbn sbr sbs sbu sga sgb sgg sgh sgi sgk sgm sgn sgr sgs sgu sh- sha shb shg shh shi shk shm shn shr shs shu sia sib sig sih sii sik sim sin sir sis siu sk- ska skb skg skh ski skk skm skr sks sku sma smb smg smh smi smk smm smn smr sms smu sna snb sng sni snk snm snn snr sns snu sr- sra srb srg srh sri srk srm srn srr srs ss- ssa ssb ssg ssh ssi ssk ssm ssn ssr sss ssu sua sub sug suh sui suk sum sun sur sus suu ua- uaa uab uag uah uai uak uam uan uar uas uau uba ubb ubg ubh ubi ubk ubn ubr ubs ubu uga ugb ugg ugh ugi ugk ugm ugn ugr ugs ugu uha uhb uhh uhi uhm uhr uhs uhu uia uib uig uii uim uin uir uis uiu uka ukb uki ukk ukn ukr uku um- uma umb umg umh umi umm umn umr ums umu un- una unb ung unh uni unk unm unn unr uns unu ur- ura urb urg uri urk urm urn urr urs uru usa usb usg ush usi usk usm usn usr uss usu uua uug uum uun uur uus uuu