-er -ic c-- ccc ccd cce ccf cci cco ccr cct cdc cdd cde cdf cdi cdo cdr cdt ce- cec ced cee cef cei ceo cer cet cfc cfd cfe cff cfi cfo cfr cft ci- cic cid cie cif cii cio cir cit co- coc cod coe cof coi coo cor cot crc crd cre crf cri cro crr crt ctc ctd cte ctf cti cto ctr ctt dcc dcd dce dcf dci dco dcr dct ddc ddd dde ddf ddi ddo ddr ddt de- dec ded dee def dei deo der det dfc dfd dfe dff dfi dfo dfr dft di- dic did die dif dii dio dir dit doc dod doe dof doi doo dor dot drc drd dre dri dro drr drt dtc dtd dte dtf dti dto dtr dtt ec- ecc ecd ece ecf eci eco ecr ect ed- edc edd ede edf edi edo edr edt eec eed eee eef eeo eer eet ef- efc efd efe eff efi efo efr eft eic eid eie eif eii eio eir eit eo- eoc eod eoe eof eoi eoo eor eot erc erd ere erf eri ero err ert etc etd ete etf eti eto etr ett fcc fcd fce fcf fci fco fcr fct fdc fdd fde fdf fdi fdo fdr fdt fec fed fee fef fei feo fer fet ffc ffd ffe fff ffi ffo ffr fft fic fid fie fif fii fir fit foc foe fof foi foo for fot frc frd fre frf fri fro frr frt ftc ftd fte ftf fti fto ftr ftt i-d i-f icc icd ice icf ici ico icr ict idc idd ide idf idi ido idr idt ie- iec ied iee ief iei ier iet ifc ifd ife iff ifi ifo ifr ift iic iid iie iif iii iio iir iit io- ioc iod ioe iof ioi ioo ior iot ir- irc ird ire irf iri iro irr irt itc itd ite itf iti ito itt o-i oc- occ ocd ocf oci oco ocr oct odc odd ode odf odi odo odr odt oec oed oee oef oei oeo oer oet of- ofc ofd ofe off ofi ofo ofr oft oic oid oie oif oii oio oir oit oo- ooc ood oof ooi ooo oor oot or- orc ord ore orf ori oro orr ort ot- otc otd ote otf oti oto otr ott rcc rcd rce rcf rci rco rcr rct rdc rdd rde rdf rdi rdo rdr rdt re- rec red ree ref rei reo rer ret rfc rfd rfe rff rfi rfo rfr rft ric rid rie rif rii rio rir rit roc rod roe rof roi roo ror rot rrc rrd rrf rri rrr rrt rtc rtd rte rtf rti rto rtr rtt tcc tcd tce tcf tci tco tcr tct tdc tdd tde tdf tdi tdo tdr tdt te- tec ted tee tef tei teo ter tet tfc tfd tfe tff tfi tfo tfr tft tic tid tie tif tii tio tir tit to- toc tod toe tof toi too tor tot trc trd tre trf tri tro trr trt ttc ttd tte ttf tti tto ttr ttt