-ic c-- ccc cci ccn ccp ccr ccs ci- cic cii cin cip cir cis cn- cnc cni cnn cnp cnr cns cpc cpi cpn cpp cpr cps crc cri crn crp crr crs csc csi csn csp csr css icc ici icn icp icr ics iic iii iin iip iir iis in- inc ini inn inp inr ins ipc ipi ipn ipp ipr ips ir- irc iri irn irp irr irs is- isc isi isn isp isr iss n-i ncc nci ncn ncp ncr ncs nic nii nin nip nir nis nnc nni nnn nnp nns npc npi npn npp npr nps nrc nri nrn nrp nrr nrs nsc nsi nsn nsp nsr nss p-p pcc pci pcn pcp pcr pcs pic pii pin pip pir pis pn- pnc pni pnn pnp pnr pns ppc ppi ppn ppp ppr pps prc pri prn prp prr prs ps- psc psi psn psp psr pss rcc rci rcn rcp rcr rcs ric rii rin rip rir ris rnc rni rnn rnp rnr rns rpc rpi rpn rpp rpr rps rrc rri rrn rrp rrr rrs rsc rsi rsn rsp rsr rss scc sci scn scp scr scs sic sii sin sip sir sis snc sni snn snp snr sns spc spi spn spp spr sps sr- src sri srn srp srr srs ss- ssc ssi ssn ssp ssr sss