-er -ic c-- ccc cce ccg cci ccn cco ccr cct ce- cec cee ceg cei cen ceo cer cet cgc cge cgg cgi cgn cgo cgr cgt ci- cic cie cig cii cin cio cir cit cn- cnc cne cng cni cnn cno cnr cnt co- coc coe cog coi con coo cor cot crc cre crg cri crn cro crr crt ctc cte ctg cti ctn cto ctr ctt ec- ecc ece ecg eci ecn eco ecr ect eec eee eeg een eeo eer eet egc ege egg egi egn ego egr egt eic eie eig eii ein eio eir eit en- enc ene eng eni enn eno enr ent eo- eoc eoe eog eoi eon eoo eor eot erc ere erg eri ern ero err ert etc ete etg eti etn eto etr ett gcc gce gcg gci gcn gco gcr gct ge- gec gee geg gei gen geo ger get ggc ggg ggi ggn ggo ggr ggt gic gie gig gii gin gio gir git gnc gne gni gnn gno gnr gnt goc goe gog goi gon goo gor got grc gre grg gri grn gro grr grt gtc gte gtg gti gtn gto gtr gtt icc ice icg ici icn ico icr ict ie- iec iee ieg iei ien ier iet igc ige igg igi ign igo igr igt iic iie iii iin iio iir iit in- inc ine ing ini inn ino inr int io- ioc ioe iog ioi ion ioo ior iot ir- irc ire irg iri irn iro irr irt itc ite itg iti itn ito itt n-i ncc nce ncg nci ncn nco ncr nct ne- nec nee neg nei nen neo ner net ngc nge ngg ngi ngn ngo ngt nic nie nig nii nin nio nir nit nnc nne nng nni nnn nno nnt no- noc noe nog noi non noo nor not nrc nre nrg nri nrn nro nrr nrt ntc nte ntg nti ntn nto ntr ntt o-i oc- occ ocg oci ocn oco ocr oct oec oee oeg oei oen oeo oer oet ogc oge ogg ogi ogn ogo ogt oic oie oii oin oio oir oit on- onc one ong oni onn ono onr ont oo- ooc oog ooi oon ooo oor oot or- orc ore org ori orn oro orr ort ot- otc ote otg oti otn oto otr ott rcc rce rcg rci rcn rco rcr rct re- rec ree reg rei ren reo rer ret rgc rge rgg rgi rgn rgo rgr rgt ric rie rig rii rin rio rir rit rnc rng rni rnn rno rnr rnt roc roe rog roi ron roo ror rot rrc rrg rri rrn rrr rrt rtc rte rtg rti rtn rto rtr rtt tcc tce tcg tci tcn tco tcr tct te- tec tee teg tei ten teo ter tet tgc tge tgg tgi tgn tgo tgr tgt tic tie tig tii tin tio tir tit tnc tne tng tni tnn tno tnr tnt to- toc toe tog toi ton too tor tot trc tre trg tri trn tro trr trt ttc tte ttg tti ttn tto ttr ttt