-er -ic c-- ccc cce ccf ccg cci cck ccn ccr cct ce- cec cee cef ceg cei cek cen cer cet cfc cfe cff cfg cfi cfk cfn cfr cft cgc cge cgg cgi cgn cgr cgt ci- cic cie cif cig cii cik cin cir cit ckc cki ckt cn- cnc cne cnf cng cni cnn cnr cnt crc cre crf crg cri crk crn crr crt ctc cte ctf ctg cti ctk ctn ctr ctt ec- ecc ece ecf ecg eci eck ecn ecr ect eec eee eef eeg eek een eer eet ef- efc efe eff efg efi efr eft egc ege egf egg egi egn egr egt eic eie eif eig eii eik ein eir eit ekc eke ekf ekg eki ekr ekt en- enc ene enf eng eni enk enn enr ent erc ere erf erg eri erk ern err ert etc ete etf etg eti etk etn etr ett fcc fce fcf fcg fci fck fcn fcr fct fec fee fef feg fei fek fen fer fet ffc ffe fff ffg ffi ffk ffn ffr fft fgc fge fgf fgg fgi fgn fgr fgt fic fie fif fig fii fik fin fir fit fkc fkf fkg fki fkk fkt fnc fne fnf fng fni fnk fnn fnr fnt frc fre frf frg fri frk frn frr frt ftc fte ftf ftg fti ftk ftn ftr ftt gcc gce gcf gcg gci gck gcn gcr gct ge- gec gee gef geg gei gek gen ger get gfc gfe gff gfi gfk gfr gft ggc ggg ggi ggn ggr ggt gic gie gif gig gii gik gin gir git gkn gkt gnc gne gnf gni gnn gnr gnt grc gre grf grg gri grk grn grr grt gtc gte gtf gtg gti gtk gtn gtr gtt i-f icc ice icf icg ici ick icn icr ict ie- iec iee ief ieg iei iek ien ier iet ifc ife iff ifg ifi ifn ifr ift igc ige igf igg igi igk ign igr igt iic iie iif iii iin iir iit ikc ike ikf iki ikk ikr ikt in- inc ine inf ing ini ink inn inr int ir- irc ire irf irg iri irk irn irr irt itc ite itf itg iti itk itn itt k-t kcc kce kcg kci kck kcn kcr kct ke- kec kee kef keg kei kek ken ker ket kfc kff kfg kfi kgc kgf kgi kic kie kif kig kii kik kin kir kit kkc kke kki kkk kkn kkr kkt kn- knc kne knf kng kni knk knn knr knt krc krf krg kri krk krn krr krt ktc kte ktf ktg ktk ktn ktr ktt n-i ncc nce ncf ncg nci nck ncn ncr nct ne- nec nee nef neg nei nek nen ner net nfc nfe nff nfi nfk nfn nfr nft ngc nge ngf ngg ngi ngk ngn ngt nic nie nif nig nii nik nin nir nit nkc nke nkf nki nkk nkn nkr nkt nnc nne nnf nng nni nnk nnn nnt nrc nre nrf nrg nri nrk nrn nrr nrt ntc nte ntf ntg nti ntk ntn ntr ntt rcc rce rcf rcg rci rcn rcr rct re- rec ree ref reg rei rek ren rer ret rfc rfe rff rfg rfi rfk rfn rfr rft rgc rge rgf rgg rgi rgk rgn rgr rgt ric rie rif rig rii rik rin rir rit rkc rke rkf rkg rkk rkt rnc rng rni rnn rnr rnt rrc rrf rrg rri rrk rrn rrr rrt rtc rte rtf rtg rti rtk rtn rtr rtt tcc tce tcf tcg tci tck tcn tcr tct te- tec tee tef teg tei tek ten ter tet tfc tfe tff tfg tfi tfk tfn tfr tft tgc tge tgf tgg tgi tgk tgn tgr tgt tic tie tif tig tii tik tin tir tit tkc tke tkg tkk tkr tkt tnc tne tnf tng tni tnk tnn tnr tnt trc tre trf trg tri trk trn trr trt ttc tte ttf ttg tti ttk ttn ttr ttt