-er -ic c-- ccc cce ccg cci cco ccp ccr cct ce- cec cee ceg cei ceo cep cer cet cgc cge cgg cgi cgo cgp cgr cgt ci- cic cie cig cii cio cip cir cit co- coc coe cog coi coo cop cor cot cpc cpe cpg cpi cpo cpp cpr cpt crc cre crg cri cro crp crr crt ctc cte ctg cti cto ctp ctr ctt ec- ecc ece ecg eci eco ecr ect eec eee eeg eeo eep eer eet egc ege egg egi ego egp egr egt eic eie eig eii eio eip eir eit eo- eoc eoe eog eoi eoo eop eor eot ep- epc epe epg epi epo epp epr ept erc ere erg eri ero erp err ert etc ete etg eti eto etp etr ett g-p gcc gce gcg gci gco gcp gcr gct ge- gec gee geg gei geo gep ger get ggc ggg ggi ggo ggp ggr ggt gic gie gig gii gio gip gir git goc goe gog goi goo gop gor got gpc gpe gpg gpi gpo gpp gpr gpt grc gre grg gri gro grp grr grt gtc gte gtg gti gto gtp gtr gtt icc ice icg ici ico icp icr ict ie- iec iee ieg iei iep ier iet igc ige igg igi igo igp igr igt iic iie iii iio iip iir iit io- ioc ioe iog ioi ioo iop ior iot ipc ipe ipg ipi ipo ipp ipr ipt ir- irc ire irg iri iro irp irr irt itc ite itg iti ito itp itt o-i oc- occ ocg oci oco ocp ocr oct oec oee oeg oei oeo oep oer oet ogc oge ogg ogi ogo ogp ogt oic oie oii oio oip oir oit oo- ooc oog ooi ooo oop oor oot op- opc ope opg opi opo opp opr opt or- orc ore org ori oro orp orr ort ot- otc ote otg oti oto otp otr ott p-p pcc pce pcg pci pco pcp pcr pct pec pee peg pei peo pep per pet pgc pge pgg pgi pgo pgp pgr pgt pic pie pig pii pio pip pir pit poc poe pog poi poo pop por pot ppc ppe ppg ppi ppo ppp ppr ppt prc pre prg pri pro prp prr prt pt- ptc pte ptg pti pto ptp ptr ptt rcc rce rcg rci rco rcp rcr rct re- rec ree reg rei reo rep rer ret rgc rge rgg rgi rgo rgp rgr rgt ric rie rig rii rio rip rir rit roc roe rog roi roo rop ror rot rpc rpe rpg rpi rpo rpp rpr rpt rrc rrg rri rrp rrr rrt rtc rte rtg rti rto rtp rtr rtt tcc tce tcg tci tco tcp tcr tct te- tec tee teg tei teo tep ter tet tgc tge tgg tgi tgo tgp tgr tgt tic tie tig tii tio tip tir tit to- toc toe tog toi too top tor tot tpc tpe tpg tpi tpo tpp tpr tpt trc tre trg tri tro trp trr trt ttc tte ttg tti tto ttp ttr ttt