-ic c-- ccc cci ccn ccr ccs ci- cic cii cin cir cis cn- cnc cni cnn cnr cns crc cri crn crr crs csc csi csn csr css icc ici icn icr ics iic iii iin iir iis in- inc ini inn inr ins ir- irc iri irn irr irs is- isc isi isn isr iss n-i ncc nci ncn ncr ncs nic nii nin nir nis nnc nni nnn nns nrc nri nrn nrr nrs nsc nsi nsn nsr nss rcc rci rcn rcr rcs ric rii rin rir ris rnc rni rnn rnr rns rrc rri rrn rrr rrs rsc rsi rsn rsr rss scc sci scn scr scs sic sii sin sir sis snc sni snn snr sns sr- src sri srn srr srs ss- ssc ssi ssn ssr sss