-er -ic c-- ccc cce ccf ccg cci ccn ccr cct ce- cec cee cef ceg cei cen cer cet cfc cfe cff cfg cfi cfn cfr cft cgc cge cgg cgi cgn cgr cgt ci- cic cie cif cig cii cin cir cit cn- cnc cne cnf cng cni cnn cnr cnt crc cre crf crg cri crn crr crt ctc cte ctf ctg cti ctn ctr ctt ec- ecc ece ecf ecg eci ecn ecr ect eec eee eef eeg een eer eet ef- efc efe eff efg efi efr eft egc ege egf egg egi egn egr egt eic eie eif eig eii ein eir eit en- enc ene enf eng eni enn enr ent erc ere erf erg eri ern err ert etc ete etf etg eti etn etr ett fcc fce fcf fcg fci fcn fcr fct fec fee fef feg fei fen fer fet ffc ffe fff ffg ffi ffn ffr fft fgc fge fgf fgg fgi fgn fgr fgt fic fie fif fig fii fin fir fit fnc fne fnf fng fni fnn fnr fnt frc fre frf frg fri frn frr frt ftc fte ftf ftg fti ftn ftr ftt gcc gce gcf gcg gci gcn gcr gct ge- gec gee gef geg gei gen ger get gfc gfe gff gfi gfr gft ggc ggg ggi ggn ggr ggt gic gie gif gig gii gin gir git gnc gne gnf gni gnn gnr gnt grc gre grf grg gri grn grr grt gtc gte gtf gtg gti gtn gtr gtt i-f icc ice icf icg ici icn icr ict ie- iec iee ief ieg iei ien ier iet ifc ife iff ifg ifi ifn ifr ift igc ige igf igg igi ign igr igt iic iie iif iii iin iir iit in- inc ine inf ing ini inn inr int ir- irc ire irf irg iri irn irr irt itc ite itf itg iti itn itt n-i ncc nce ncf ncg nci ncn ncr nct ne- nec nee nef neg nei nen ner net nfc nfe nff nfi nfn nfr nft ngc nge ngf ngg ngi ngn ngt nic nie nif nig nii nin nir nit nnc nne nnf nng nni nnn nnt nrc nre nrf nrg nri nrn nrr nrt ntc nte ntf ntg nti ntn ntr ntt rcc rce rcf rcg rci rcn rcr rct re- rec ree ref reg rei ren rer ret rfc rfe rff rfg rfi rfn rfr rft rgc rge rgf rgg rgi rgn rgr rgt ric rie rif rig rii rin rir rit rnc rng rni rnn rnr rnt rrc rrf rrg rri rrn rrr rrt rtc rte rtf rtg rti rtn rtr rtt tcc tce tcf tcg tci tcn tcr tct te- tec tee tef teg tei ten ter tet tfc tfe tff tfg tfi tfn tfr tft tgc tge tgf tgg tgi tgn tgr tgt tic tie tif tig tii tin tir tit tnc tne tnf tng tni tnn tnr tnt trc tre trf trg tri trn trr trt ttc tte ttf ttg tti ttn ttr ttt