c-- c-j ccc ccj ccp ccr ccs cjc cjp cjr cjs cpc cpj cpp cpr cps crc crj crp crr crs csc csj csp csr css jcc jcp jcr jcs jjc jjj jjp jjr jjs jpc jpj jpp jpr jps jrc jrp jrr jrs jsc jsj jsp jsr jss p-p pcc pcj pcp pcr pcs pjc pjp pjs ppc ppj ppp ppr pps prc prp prr prs ps- psc psj psp psr pss rcc rcj rcp rcr rcs rjc rjp rjr rpc rpp rpr rps rrc rrp rrr rrs rsc rsj rsp rsr rss scc scj scp scr scs sjc sjj sjp sjr sjs spc spp spr sps sr- src srj srp srr srs ss- ssc ssj ssp ssr sss