obu oc- oca ocb occ ocg och oci ocl oco ocs ocu oea oeb oec oee oeg oeh oei oel oeo oes oga ogc oge ogg ogh ogi ogl ogo ogs oha ohc ohe ohg ohh ohi ohl oho ohs ohu oia oib oic oie oii oil oio ois oiu ola olb olc ole olg oli oll olo ols olu oo- ooa oob ooc oog ooh ooi ool ooo oos os- osa osb osc ose osg osh osi osl oso oss osu ou- oua ouc oue ouh oui oul ouo ous saa sab sac sae sag sah sai sal sao sas sau sba sbb sbc sbe sbg sbh sbi sbl sbo sbs sbu sca scb scc sce scg sch sci scl sco scs scu se- sea seb sec see seg seh sei sel seo ses seu sga sgb sgc sge sgg sgh sgi sgl sgo sgs sgu sh- sha shb shc she shg shh shi shl sho shs shu sia sib sic sie sig sih sii sil sio sis siu sla slb slc sle slg slh sli sll slo sls slu soa sob soc soe sog soh soi sol soo sos sou ss- ssa ssb ssc sse ssg ssh ssi ssl sso sss ssu sua sub suc sue sug suh sui sul suo sus suu ua- uaa uab uac uae uag uah uai ual uao uas uau uba ubb ubc ube ubg ubh ubi ubl ubo ubs ubu uca ucb ucc uce ucg uch uci ucl uco ucs ucu uea ueb uec uee ueg ueh uei uel ues uga ugb ugc uge ugg ugh ugi ugl ugo ugs ugu uha uhb uhc uhe uhh uhi uhl uho uhs uhu uia uib uic uie uig uii uil uio uis uiu ula ulb ulc ule ulg uli ull ulo uls ulu uoa uob uoc uoe uog uol uoo uos usa usb usc use usg ush usi usl uso uss usu uua uuc uue uug uus uuu