-er -ic c-- ccc cce ccg cci cck ccn ccr ce- cec cee ceg cei cek cen cer cgc cge cgg cgi cgn cgr ci- cic cie cig cii cik cin cir ckc cki cn- cnc cne cng cni cnn cnr crc cre crg cri crk crn crr ec- ecc ece ecg eci eck ecn ecr eec eee eeg eek een eer egc ege egg egi egn egr eic eie eig eii eik ein eir ekc eke ekg eki ekr en- enc ene eng eni enk enn enr erc ere erg eri erk ern err gcc gce gcg gci gck gcn gcr ge- gec gee geg gei gek gen ger ggc ggg ggi ggn ggr gic gie gig gii gik gin gir gkn gnc gne gni gnn gnr grc gre grg gri grk grn grr icc ice icg ici ick icn icr ie- iec iee ieg iei iek ien ier igc ige igg igi igk ign igr iic iie iii iin iir ikc ike iki ikk ikr in- inc ine ing ini ink inn inr ir- irc ire irg iri irk irn irr kcc kce kcg kci kck kcn kcr ke- kec kee keg kei kek ken ker kgc kgi kic kie kig kii kik kin kir kkc kke kki kkk kkn kkr kn- knc kne kng kni knk knn knr krc krg kri krk krn krr n-i ncc nce ncg nci nck ncn ncr ne- nec nee neg nei nek nen ner ngc nge ngg ngi ngk ngn nic nie nig nii nik nin nir nkc nke nki nkk nkn nkr nnc nne nng nni nnk nnn nrc nre nrg nri nrk nrn nrr rcc rce rcg rci rcn rcr re- rec ree reg rei rek ren rer rgc rge rgg rgi rgk rgn rgr ric rie rig rii rik rin rir rkc rke rkg rkk rnc rng rni rnn rnr rrc rrg rri rrk rrn rrr