-ic c-- ccc cce ccf cci ccn ccs ce- cec cee cef cei cen ces cfc cfe cff cfi cfn cfs ci- cic cie cif cii cin cis cn- cnc cne cnf cni cnn cns csc cse csf csi csn css ec- ecc ece ecf eci ecn ecs eec eee eef een ees ef- efc efe eff efi efs eic eie eif eii ein eis en- enc ene enf eni enn ens es- esc ese esf esi esn ess fcc fce fcf fci fcn fcs fec fee fef fei fen fes ffc ffe fff ffi ffn ffs fic fie fif fii fin fis fnc fne fnf fni fnn fns fsc fse fsf fsi fsn fss i-f icc ice icf ici icn ics ie- iec iee ief iei ien ies ifc ife iff ifi ifn ifs iic iie iif iii iin iis in- inc ine inf ini inn ins is- isc ise isf isi isn iss n-i ncc nce ncf nci ncn ncs ne- nec nee nef nei nen nes nfc nfe nff nfi nfn nfs nic nie nif nii nin nis nnc nne nnf nni nnn nns nsc nse nsf nsi nsn nss scc sce scf sci scn scs se- sec see sef sei sen ses sfc sfe sff sfi sfn sfs sic sie sif sii sin sis snc sne snf sni snn sns ss- ssc sse ssf ssi ssn sss