c-- ccc cck ccm cco ccr ccs ccu ckc ckm cko cks cmc cmk cmm cmo cmr cms cmu co- coc cok com coo cor cos cou crc crk crm cro crr crs cru csc csk csm cso csr css csu cuc cuk cum cuo cur cus cuu kcc kck kcm kcr kcs kcu kkc kkk kkm kkr kks kku kmc kmk kmm kmo kms kmu koc kok kom koo kor kos kou krc krk kro krr krs kru ksc ksk ksm kso ksr kss ksu kuc kuk kum kur kus kuu m-o m-r mc- mcc mck mcm mco mcr mcs mcu mkc mkk mkm mko mkr mks mku mmc mmk mmm mmo mmr mms mmu moc mok mom moo mor mos mou mrc mrk mrm mro mrr mrs mru msc msk msm mso msr mss msu muc muk mum mur mus muu oc- occ ock ocm oco ocr ocs ocu okc okk oko okr oks oku om- omc omm omo omr oms omu oo- ooc ook oom ooo oor oos or- orc ork orm oro orr ors oru os- osc osk osm oso osr oss osu ou- ouc ouk oum ouo our ous rcc rcm rco rcr rcs rcu rkc rkk rkm rko rks rku rmc rmm rmo rmr rms roc rok rom roo ror ros rou rrc rrk rrm rrr rrs rru rsc rsk rsm rso rsr rss rsu ruc ruk rum ruo rur rus ruu scc sck scm sco scr scs scu sk- skc skk skm sko skr sks sku smc smk smm smo smr sms smu soc sok som soo sor sos sou sr- src srk srm sro srr srs ss- ssc ssk ssm sso ssr sss ssu suc suk sum suo sur sus suu ucc uck ucm uco ucr ucs ucu ukc ukk ukr uku um- umc umm umo umr ums umu uoc uok uom uoo uor uos ur- urc urk urm uro urr urs uru usc usk usm uso usr uss usu uuc uum uur uus uuu