-er -ic c-- ccc cce ccg cci cco ccr ccv ce- cec cee ceg cei ceo cer cev cgc cge cgg cgi cgo cgr cgv ci- cic cie cig cii cio cir civ co- coc coe cog coi coo cor cov crc cre crg cri cro crr crv cvc cve cvg cvi cvo cvr cvv ec- ecc ece ecg eci eco ecr ecv eec eee eeg eeo eer eev egc ege egg egi ego egr eic eie eig eii eio eir eiv eo- eoc eoe eog eoi eoo eor erc ere erg eri ero err erv evc eve evg evi evo evr evv gcc gce gcg gci gco gcr ge- gec gee geg gei geo ger gev ggc ggg ggi ggo ggr ggv gic gie gig gii gio gir giv goc goe gog goi goo gor gov grc gre grg gri gro grr grv gvc gve gvg gvi gvo gvr i-v icc ice icg ici ico icr icv ie- iec iee ieg iei ier iev igc ige igg igi igo igr iic iie iii iio iir io- ioc ioe iog ioi ioo ior iov ir- irc ire irg iri iro irr irv ivc ive ivg ivi ivo ivr ivv o-i oc- occ ocg oci oco ocr ocv oec oee oeg oei oeo oer ogc oge ogg ogi ogo oic oie oii oio oir oiv oo- ooc oog ooi ooo oor oov or- orc ore org ori oro orr orv ov- ovc ove ovi ovo ovv rcc rce rcg rci rco rcr rcv re- rec ree reg rei reo rer rev rgc rge rgg rgi rgo rgr rgv ric rie rig rii rio rir riv roc roe rog roi roo ror rov rrc rrg rri rrr rvc rve rvg rvi rvo rvr rvv v-e vcc vce vci vco vcr vec vee veg vei veo ver vgc vgg vgo vgr vi- vic vie vig vii vio vir viv voc voe vog voi voo vor vov vrc vre vrg vri vrr vvc vvg vvi vvo vvr vvv