-er -ic c-- ccc ccd cce ccf cci ccn ccr ccs cct cdc cdd cde cdf cdi cdn cdr cds cdt ce- cec ced cee cef cei cen cer ces cet cfc cfd cfe cff cfi cfn cfr cfs cft ci- cic cid cie cif cii cin cir cis cit cn- cnc cnd cne cnf cni cnn cnr cns cnt crc crd cre crf cri crn crr crs crt csc csd cse csf csi csn csr css cst ctc ctd cte ctf cti ctn ctr cts ctt dcc dcd dce dcf dci dcn dcr dcs dct ddc ddd dde ddf ddi ddn ddr dds ddt de- dec ded dee def dei den der des det dfc dfd dfe dff dfi dfn dfr dfs dft di- dic did die dif dii din dir dis dit dnc dnd dne dnf dni dnn dnr dns dnt drc drd dre dri drn drr drs drt dsc dsd dse dsf dsi dsn dsr dss dst dtc dtd dte dtf dti dtn dtr dts dtt ec- ecc ecd ece ecf eci ecn ecr ecs ect ed- edc edd ede edf edi edn edr eds edt eec eed eee eef een eer ees eet ef- efc efd efe eff efi efr efs eft eic eid eie eif eii ein eir eis eit en- enc end ene enf eni enn enr ens ent erc erd ere erf eri ern err ers ert es- esc esd ese esf esi esn esr ess est etc etd ete etf eti etn etr ets ett fcc fcd fce fcf fci fcn fcr fcs fct fdc fdd fde fdf fdi fdn fdr fds fdt fec fed fee fef fei fen fer fes fet ffc ffd ffe fff ffi ffn ffr ffs fft fic fid fie fif fii fin fir fis fit fnc fnd fne fnf fni fnn fnr fns fnt frc frd fre frf fri frn frr frs frt fsc fsd fse fsf fsi fsn fsr fss fst ftc ftd fte ftf fti ftn ftr fts ftt i-d i-f icc icd ice icf ici icn icr ics ict idc idd ide idf idi idn idr ids idt ie- iec ied iee ief iei ien ier ies iet ifc ifd ife iff ifi ifn ifr ifs ift iic iid iie iif iii iin iir iis iit in- inc ind ine inf ini inn inr ins int ir- irc ird ire irf iri irn irr irs irt is- isc isd ise isf isi isn isr iss ist itc itd ite itf iti itn its itt n-i ncc ncd nce ncf nci ncn ncr ncs nct ndc ndd nde ndf ndi ndn ndr nds ndt ne- nec ned nee nef nei nen ner nes net nfc nfd nfe nff nfi nfn nfr nfs nft nic nid nie nif nii nin nir nis nit nnc nne nnf nni nnn nns nnt nrc nrd nre nrf nri nrn nrr nrs nrt nsc nsd nse nsf nsi nsn nsr nss nst ntc ntd nte ntf nti ntn ntr nts ntt rcc rcd rce rcf rci rcn rcr rcs rct rdc rdd rde rdf rdi rdn rdr rds rdt re- rec red ree ref rei ren rer res ret rfc rfd rfe rff rfi rfn rfr rfs rft ric rid rie rif rii rin rir ris rit rnc rnd rni rnn rnr rns rnt rrc rrd rrf rri rrn rrr rrs rrt rsc rsd rse rsf rsi rsn rsr rss rst rtc rtd rte rtf rti rtn rtr rts rtt scc scd sce scf sci scn scr scs sct sdc sdd sde sdf sdi sdn sdr sds sdt se- sec sed see sef sei sen ser ses set sfc sfd sfe sff sfi sfn sfr sfs sft sic sid sie sif sii sin sir sis sit snc snd sne snf sni snn snr sns snt sr- src srd sre srf sri srn srr srs srt ss- ssc ssd sse ssf ssi ssn ssr sss sst stc std ste stf sti stn str sts stt tcc tcd tce tcf tci tcn tcr tcs tct tdc tdd tde tdf tdi tdn tdr tds tdt te- tec ted tee tef tei ten ter tes tet tfc tfd tfe tff tfi tfn tfr tfs tft tic tid tie tif tii tin tir tis tit tnc tnd tne tnf tni tnn tnr tns tnt trc trd tre trf tri trn trr trs trt tsc tsd tse tsf tsi tsn tsr tss tst ttc ttd tte ttf tti ttn ttr tts ttt