-ic c-- ccc cci cck ccn ccs ci- cic cii cik cin cis ckc cki cks cn- cnc cni cnn cns csc csi csk csn css icc ici ick icn ics iic iii iin iis ikc iki ikk iks in- inc ini ink inn ins is- isc isi isk isn iss kcc kci kck kcn kcs kic kii kik kin kis kkc kki kkk kkn kks kn- knc kni knk knn ksc ksi ksk ksn kss n-i ncc nci nck ncn ncs nic nii nik nin nis nkc nki nkk nkn nks nnc nni nnk nnn nns nsc nsi nsk nsn nss scc sci sck scn scs sic sii sik sin sis sk- skc ski skk sks snc sni snk snn sns ss- ssc ssi ssk ssn sss