-ic c-- ccc cci cck ccp ccr ci- cic cii cik cip cir ckc cki cky cpc cpi cpk cpp cpr crc cri crk crp crr cry cyc cyk cyp cyr icc ici ick icp icr icy iic iii iip iir ikc iki ikk ikr ipc ipi ipp ipr ipy ir- irc iri irk irp irr iry iyc iyr iyy kcc kci kck kcp kcr kic kii kik kip kir kkc kki kkk kkp kkr kky kpc kpi kpk kpp kpr krc kri krk krp krr kry kyc kyp kyr p-p pcc pci pck pcp pcr pic pii pik pip pir pkc pki pkp pkr pky ppc ppi ppk ppp ppr prc pri prk prp prr pry py- pyc pyk pyr rcc rci rcp rcr ric rii rik rip rir riy rkc rkk rkp rky rpc rpi rpk rpp rpr rrc rri rrk rrp rrr ry- ryc ryk ryr ryy ycc yci ycp ycy yii yip yir yki ykk yrc yrp yyc yyy