-up c-- ccc ccp ccr ccs ccu ccz cpc cpp cpr cps cpu cpz crc crp crr crs cru crz csc csp csr css csu csz cuc cup cur cus cuu cuz cz- czc p-p pcc pcp pcr pcs pcu ppc ppp ppr pps ppu ppz prc prp prr prs pru prz ps- psc psp psr pss psu puc pup pur pus puu puz pzc pzp rcc rcp rcr rcs rcu rpc rpp rpr rps rpu rpz rrc rrp rrr rrs rru rsc rsp rsr rss rsu ruc rup rur rus ruu ruz scc scp scr scs scu spc spp spr sps spu spz sr- src srp srr srs ss- ssc ssp ssr sss ssu ssz suc sup sur sus suu suz szp szr szu ucc ucp ucr ucs ucu up- upc upp upr ups upu upz ur- urc urp urr urs uru urz usc usp usr uss usu usz uuc uur uus uuu uzu zcs zpc zpp zpr zpu zrp zrs zsu zsz zuc zur zus zuz zzr zzs zzz