-er -ic c-- ccc ccd cce ccf cci cco ccp ccr ccs cct cdc cdd cde cdf cdi cdo cdp cdr cds cdt ce- cec ced cee cef cei ceo cep cer ces cet cfc cfd cfe cff cfi cfo cfp cfr cfs cft ci- cic cid cie cif cii cio cip cir cis cit co- coc cod coe cof coi coo cop cor cos cot cpc cpd cpe cpf cpi cpo cpp cpr cps cpt crc crd cre crf cri cro crp crr crs crt csc csd cse csf csi cso csp csr css cst ctc ctd cte ctf cti cto ctp ctr cts ctt dcc dcd dce dcf dci dco dcp dcr dcs dct ddc ddd dde ddf ddi ddo ddp ddr dds ddt de- dec ded dee def dei deo dep der des det dfc dfd dfe dff dfi dfo dfp dfr dfs dft di- dic did die dif dii dio dip dir dis dit doc dod doe dof doi doo dop dor dos dot dpc dpd dpe dpf dpi dpo dpp dpr dps dpt drc drd dre dri dro drp drr drs drt dsc dsd dse dsf dsi dso dsp dsr dss dst dtc dtd dte dtf dti dto dtp dtr dts dtt ec- ecc ecd ece ecf eci eco ecr ecs ect ed- edc edd ede edf edi edo edp edr eds edt eec eed eee eef eeo eep eer ees eet ef- efc efd efe eff efi efo efp efr efs eft eic eid eie eif eii eio eip eir eis eit eo- eoc eod eoe eof eoi eoo eop eor eos eot ep- epc epd epe epf epi epo epp epr eps ept erc erd ere erf eri ero erp err ers ert es- esc esd ese esf esi eso esp esr ess est etc etd ete etf eti eto etp etr ets ett fcc fcd fce fcf fci fco fcp fcr fcs fct fdc fdd fde fdf fdi fdo fdp fdr fds fdt fec fed fee fef fei feo fep fer fes fet ffc ffd ffe fff ffi ffo ffp ffr ffs fft fic fid fie fif fii fip fir fis fit foc foe fof foi foo fop for fos fot fpc fpd fpe fpi fpo fpp fpr fps fpt frc frd fre frf fri fro frp frr frs frt fsc fsd fse fsf fsi fso fsp fsr fss fst ftc ftd fte ftf fti fto ftp ftr fts ftt i-d i-f icc icd ice icf ici ico icp icr ics ict idc idd ide idf idi ido idp idr ids idt ie- iec ied iee ief iei iep ier ies iet ifc ifd ife iff ifi ifo ifp ifr ifs ift iic iid iie iif iii iio iip iir iis iit io- ioc iod ioe iof ioi ioo iop ior ios iot ipc ipd ipe ipf ipi ipo ipp ipr ips ipt ir- irc ird ire irf iri iro irp irr irs irt is- isc isd ise isf isi iso isp isr iss ist itc itd ite itf iti ito itp its itt o-i oc- occ ocd ocf oci oco ocp ocr ocs oct odc odd ode odf odi odo odp odr ods odt oec oed oee oef oei oeo oep oer oes oet of- ofc ofd ofe off ofi ofo ofp ofr ofs oft oic oid oie oif oii oio oip oir ois oit oo- ooc ood oof ooi ooo oop oor oos oot op- opc opd ope opf opi opo opp opr ops opt or- orc ord ore orf ori oro orp orr ors ort os- osc osd ose osf osi oso osp osr oss ost ot- otc otd ote otf oti oto otp otr ots ott p-p pcc pcd pce pcf pci pco pcp pcr pcs pct pdc pdd pde pdf pdi pdo pdp pdr pds pdt pec ped pee pef pei peo pep per pes pet pfc pfd pfe pff pfi pfo pfp pfr pfs pft pic pid pie pif pii pio pip pir pis pit poc pod poe pof poi poo pop por pos pot ppc ppd ppe ppf ppi ppo ppp ppr pps ppt prc prd pre prf pri pro prp prr prs prt ps- psc psd pse psf psi pso psp psr pss pst pt- ptc ptd pte ptf pti pto ptp ptr pts ptt rcc rcd rce rcf rci rco rcp rcr rcs rct rdc rdd rde rdf rdi rdo rdp rdr rds rdt re- rec red ree ref rei reo rep rer res ret rfc rfd rfe rff rfi rfo rfp rfr rfs rft ric rid rie rif rii rio rip rir ris rit roc rod roe rof roi roo rop ror ros rot rpc rpd rpe rpf rpi rpo rpp rpr rps rpt rrc rrd rrf rri rrp rrr rrs rrt rsc rsd rse rsf rsi rso rsp rsr rss rst rtc rtd rte rtf rti rto rtp rtr rts rtt scc scd sce scf sci sco scp scr scs sct sdc sdd sde sdf sdi sdo sdp sdr sds sdt se- sec sed see sef sei seo sep ser ses set sfc sfd sfe sff sfi sfo sfp sfr sfs sft sic sid sie sif sii sio sip sir sis sit soc sod soe sof soi soo sop sor sos sot spc spd spe spf spi spo spp spr sps spt sr- src srd sre srf sri sro srp srr srs srt ss- ssc ssd sse ssf ssi sso ssp ssr sss sst stc std ste stf sti sto stp str sts stt tcc tcd tce tcf tci tco tcp tcr tcs tct tdc tdd tde tdf tdi tdo tdp tdr tds tdt te- tec ted tee tef tei teo tep ter tes tet tfc tfd tfe tff tfi tfo tfp tfr tfs tft tic tid tie tif tii tio tip tir tis tit to- toc tod toe tof toi too top tor tos tot tpc tpd tpe tpf tpi tpo tpp tpr tps tpt trc trd tre trf tri