-er -ic c-- ccc ccd cce ccg cci cco ccr cct cdc cdd cde cdg cdi cdo cdr cdt ce- cec ced cee ceg cei ceo cer cet cgc cgd cge cgg cgi cgo cgr cgt ci- cic cid cie cig cii cio cir cit co- coc cod coe cog coi coo cor cot crc crd cre crg cri cro crr crt ctc ctd cte ctg cti cto ctr ctt dcc dcd dce dcg dci dco dcr dct ddc ddd dde ddg ddi ddo ddr ddt de- dec ded dee deg dei deo der det dgc dgd dge dgg dgi dgr dgt di- dic did die dig dii dio dir dit doc dod doe dog doi doo dor dot drc drd dre drg dri dro drr drt dtc dtd dte dtg dti dto dtr dtt ec- ecc ecd ece ecg eci eco ecr ect ed- edc edd ede edg edi edo edr edt eec eed eee eeg eeo eer eet egc egd ege egg egi ego egr egt eic eid eie eig eii eio eir eit eo- eoc eod eoe eog eoi eoo eor eot erc erd ere erg eri ero err ert etc etd ete etg eti eto etr ett g-d gcc gcd gce gcg gci gco gcr gct gdc gdd gde gdi gdo gdr gdt ge- gec ged gee geg gei geo ger get ggc ggd ggg ggi ggo ggr ggt gic gid gie gig gii gio gir git goc god goe gog goi goo gor got grc grd gre grg gri gro grr grt gtc gtd gte gtg gti gto gtr gtt i-d icc icd ice icg ici ico icr ict idc idd ide idg idi ido idr idt ie- iec ied iee ieg iei ier iet igc igd ige igg igi igo igr igt iic iid iie iii iio iir iit io- ioc iod ioe iog ioi ioo ior iot ir- irc ird ire irg iri iro irr irt itc itd ite itg iti ito itt o-i oc- occ ocd ocg oci oco ocr oct odc odd ode odg odi odo odr odt oec oed oee oeg oei oeo oer oet ogc ogd oge ogg ogi ogo ogt oic oid oie oii oio oir oit oo- ooc ood oog ooi ooo oor oot or- orc ord ore org ori oro orr ort ot- otc otd ote otg oti oto otr ott rcc rcd rce rcg rci rco rcr rct rdc rdd rde rdg rdi rdo rdr rdt re- rec red ree reg rei reo rer ret rgc rgd rge rgg rgi rgo rgr rgt ric rid rie rig rii rio rir rit roc rod roe rog roi roo ror rot rrc rrd rrg rri rrr rrt rtc rtd rte rtg rti rto rtr rtt tcc tcd tce tcg tci tco tcr tct tdc tdd tde tdg tdi tdo tdr tdt te- tec ted tee teg tei teo ter tet tgc tge tgg tgi tgo tgr tgt tic tid tie tig tii tio tir tit to- toc tod toe tog toi too tor tot trc trd tre trg tri tro trr trt ttc ttd tte ttg tti tto ttr ttt