-er -ic c-- ccc cce cci ccn ccr ce- cec cee cei cen cer ci- cic cie cii cin cir cn- cnc cne cni cnn cnr crc cre cri crn crr ec- ecc ece eci ecn ecr eec eee een eer eic eie eii ein eir en- enc ene eni enn enr erc ere eri ern err icc ice ici icn icr ie- iec iee iei ien ier iic iie iii iin iir in- inc ine ini inn inr ir- irc ire iri irn irr n-i ncc nce nci ncn ncr ne- nec nee nei nen ner nic nie nii nin nir nnc nne nni nnn nrc nre nri nrn nrr rcc rce rci rcn rcr re- rec ree rei ren rer ric rie rii rin rir rnc rni rnn rnr rrc rri rrn rrr