rcb rcc rcg rch rci rcl rco rcr rcs rcu rga rgb rgc rgg rgh rgi rgo rgr rgs rh- rha rhb rhc rhg rhh rhi rhl rho rhr rhs rhu ria rib ric rig rih rii ril rio rir ris rla rlc rlg rlh rli rll rlo rlr rls rlu roa rob roc rog roh roi rol roo ror ros rou rra rrb rrc rrg rrh rri rrl rrr rrs rru rsa rsb rsc rsg rsh rsi rsl rso rsr rss rsu rua rub ruc rug ruh rui ruo rur rus ruu saa sab sac sag sah sai sal sao sar sas sau sba sbb sbc sbg sbh sbi sbl sbo sbr sbs sbu sca scb scc scg sch sci scl sco scr scs scu sga sgb sgc sgg sgh sgi sgl sgo sgr sgs sgu sh- sha shb shc shg shh shi shl sho shr shs shu sia sib sic sig sih sii sil sio sir sis siu sla slb slc slg slh sli sll slo slr sls slu soa sob soc sog soh soi sol soo sor sos sou sr- sra srb src srg srh sri srl sro srr srs ss- ssa ssb ssc ssg ssh ssi ssl sso ssr sss ssu sua sub suc sug suh sui sul suo sur sus suu ua- uaa uab uac uag uah uai ual uao uar uas uau uba ubb ubc ubg ubh ubi ubl ubo ubr ubs ubu uca ucb ucc ucg uch uci ucl uco ucr ucs ucu uga ugb ugc ugg ugh ugi ugl ugo ugr ugs ugu uha uhb uhc uhh uhi uhl uho uhr uhs uhu uia uib uic uig uii uil uio uir uis uiu ula ulb ulc ulg uli ull ulo ulr uls ulu uoa uob uoc uog uol uoo uor uos ur- ura urb urc urg uri url uro urr urs uru usa usb usc usg ush usi usl uso usr uss usu uua uuc uug uur uus uuu