-er -ic c-- ccc ccd cce ccf cci cco ccp ccr cdc cdd cde cdf cdi cdo cdp cdr ce- cec ced cee cef cei ceo cep cer cfc cfd cfe cff cfi cfo cfp cfr ci- cic cid cie cif cii cio cip cir co- coc cod coe cof coi coo cop cor cpc cpd cpe cpf cpi cpo cpp cpr crc crd cre crf cri cro crp crr dcc dcd dce dcf dci dco dcp dcr ddc ddd dde ddf ddi ddo ddp ddr de- dec ded dee def dei deo dep der dfc dfd dfe dff dfi dfo dfp dfr di- dic did die dif dii dio dip dir doc dod doe dof doi doo dop dor dpc dpd dpe dpf dpi dpo dpp dpr drc drd dre dri dro drp drr ec- ecc ecd ece ecf eci eco ecr ed- edc edd ede edf edi edo edp edr eec eed eee eef eeo eep eer ef- efc efd efe eff efi efo efp efr eic eid eie eif eii eio eip eir eo- eoc eod eoe eof eoi eoo eop eor ep- epc epd epe epf epi epo epp epr erc erd ere erf eri ero erp err fcc fcd fce fcf fci fco fcp fcr fdc fdd fde fdf fdi fdo fdp fdr fec fed fee fef fei feo fep fer ffc ffd ffe fff ffi ffo ffp ffr fic fid fie fif fii fip fir foc foe fof foi foo fop for fpc fpd fpe fpi fpo fpp fpr frc frd fre frf fri fro frp frr i-d i-f icc icd ice icf ici ico icp icr idc idd ide idf idi ido idp idr ie- iec ied iee ief iei iep ier ifc ifd ife iff ifi ifo ifp ifr iic iid iie iif iii iio iip iir io- ioc iod ioe iof ioi ioo iop ior ipc ipd ipe ipf ipi ipo ipp ipr ir- irc ird ire irf iri iro irp irr o-i oc- occ ocd ocf oci oco ocp ocr odc odd ode odf odi odo odp odr oec oed oee oef oei oeo oep oer of- ofc ofd ofe off ofi ofo ofp ofr oic oid oie oif oii oio oip oir oo- ooc ood oof ooi ooo oop oor op- opc opd ope opf opi opo opp opr or- orc ord ore orf ori oro orp orr p-p pcc pcd pce pcf pci pco pcp pcr pdc pdd pde pdf pdi pdo pdp pdr pec ped pee pef pei peo pep per pfc pfd pfe pff pfi pfo pfp pfr pic pid pie pif pii pio pip pir poc pod poe pof poi poo pop por ppc ppd ppe ppf ppi ppo ppp ppr prc prd pre prf pri pro prp prr rcc rcd rce rcf rci rco rcp rcr rdc rdd rde rdf rdi rdo rdp rdr re- rec red ree ref rei reo rep rer rfc rfd rfe rff rfi rfo rfp rfr ric rid rie rif rii rio rip rir roc rod roe rof roi roo rop ror rpc rpd rpe rpf rpi rpo rpp rpr rrc rrd rrf rri rrp rrr