-er -ic c-- ccc ccd cce ccg cci ccp ccr cct cdc cdd cde cdg cdi cdp cdr cdt ce- cec ced cee ceg cei cep cer cet cgc cgd cge cgg cgi cgp cgr cgt ci- cic cid cie cig cii cip cir cit cpc cpd cpe cpg cpi cpp cpr cpt crc crd cre crg cri crp crr crt ctc ctd cte ctg cti ctp ctr ctt dcc dcd dce dcg dci dcp dcr dct ddc ddd dde ddg ddi ddp ddr ddt de- dec ded dee deg dei dep der det dgc dgd dge dgg dgi dgp dgr dgt di- dic did die dig dii dip dir dit dpc dpd dpe dpg dpi dpp dpr dpt drc drd dre drg dri drp drr drt dtc dtd dte dtg dti dtp dtr dtt ec- ecc ecd ece ecg eci ecr ect ed- edc edd ede edg edi edp edr edt eec eed eee eeg eep eer eet egc egd ege egg egi egp egr egt eic eid eie eig eii eip eir eit ep- epc epd epe epg epi epp epr ept erc erd ere erg eri erp err ert etc etd ete etg eti etp etr ett g-d g-p gcc gcd gce gcg gci gcp gcr gct gdc gdd gde gdi gdp gdr gdt ge- gec ged gee geg gei gep ger get ggc ggd ggg ggi ggp ggr ggt gic gid gie gig gii gip gir git gpc gpd gpe gpg gpi gpp gpr gpt grc grd gre grg gri grp grr grt gtc gtd gte gtg gti gtp gtr gtt i-d icc icd ice icg ici icp icr ict idc idd ide idg idi idp idr idt ie- iec ied iee ieg iei iep ier iet igc igd ige igg igi igp igr igt iic iid iie iii iip iir iit ipc ipd ipe ipg ipi ipp ipr ipt ir- irc ird ire irg iri irp irr irt itc itd ite itg iti itp itt p-p pcc pcd pce pcg pci pcp pcr pct pdc pdd pde pdg pdi pdp pdr pdt pec ped pee peg pei pep per pet pgc pgd pge pgg pgi pgp pgr pgt pic pid pie pig pii pip pir pit ppc ppd ppe ppg ppi ppp ppr ppt prc prd pre prg pri prp prr prt pt- ptc ptd pte ptg pti ptp ptr ptt rcc rcd rce rcg rci rcp rcr rct rdc rdd rde rdg rdi rdp rdr rdt re- rec red ree reg rei rep rer ret rgc rgd rge rgg rgi rgp rgr rgt ric rid rie rig rii rip rir rit rpc rpd rpe rpg rpi rpp rpr rpt rrc rrd rrg rri rrp rrr rrt rtc rtd rte rtg rti rtp rtr rtt tcc tcd tce tcg tci tcp tcr tct tdc tdd tde tdg tdi tdp tdr tdt te- tec ted tee teg tei tep ter tet tgc tge tgg tgi tgp tgr tgt tic tid tie tig tii tip tir tit tpc tpd tpe tpg tpi tpp tpr tpt trc trd tre trg tri trp trr trt ttc ttd tte ttg tti ttp ttr ttt