-er -ic c-- ccc cce ccf cci ccn ccr ce- cec cee cef cei cen cer cfc cfe cff cfi cfn cfr ci- cic cie cif cii cin cir cn- cnc cne cnf cni cnn cnr crc cre crf cri crn crr ec- ecc ece ecf eci ecn ecr eec eee eef een eer ef- efc efe eff efi efr eic eie eif eii ein eir en- enc ene enf eni enn enr erc ere erf eri ern err fcc fce fcf fci fcn fcr fec fee fef fei fen fer ffc ffe fff ffi ffn ffr fic fie fif fii fin fir fnc fne fnf fni fnn fnr frc fre frf fri frn frr i-f icc ice icf ici icn icr ie- iec iee ief iei ien ier ifc ife iff ifi ifn ifr iic iie iif iii iin iir in- inc ine inf ini inn inr ir- irc ire irf iri irn irr n-i ncc nce ncf nci ncn ncr ne- nec nee nef nei nen ner nfc nfe nff nfi nfn nfr nic nie nif nii nin nir nnc nne nnf nni nnn nrc nre nrf nri nrn nrr rcc rce rcf rci rcn rcr re- rec ree ref rei ren rer rfc rfe rff rfi rfn rfr ric rie rif rii rin rir rnc rni rnn rnr rrc rrf rri rrn rrr