c-- ccc cch ccr ccs ccu ch- chc chh chr chs chu crc crh crr crs cru csc csh csr css csu cuc cuh cur cus cuu hcc hch hcr hcs hhc hhh hhr hhs hhu hr- hrc hrh hrr hrs hru hsc hsh hsr hss hsu huc huh hur hus huu rcc rch rcr rcs rcu rh- rhc rhh rhr rhs rhu rrc rrh rrr rrs rru rsc rsh rsr rss rsu ruc ruh rur rus ruu scc sch scr scs scu sh- shc shh shr shs shu sr- src srh srr srs ss- ssc ssh ssr sss ssu suc suh sur sus suu ucc uch ucr ucs ucu uhc uhh uhr uhs uhu ur- urc urr urs uru usc ush usr uss usu uuc uur uus uuu