-er -ic c-- ccc ccd cce ccf cci cco ccr ccw cdc cdd cde cdf cdi cdo cdr cdw ce- cec ced cee cef cei ceo cer cew cfc cfd cfe cff cfi cfo cfr cfw ci- cic cid cie cif cii cio cir ciw co- coc cod coe cof coi coo cor cow crc crd cre crf cri cro crr crw cw- cwc cwd cwe cwi cwo cwr dcc dcd dce dcf dci dco dcr dcw ddc ddd dde ddf ddi ddo ddr ddw de- dec ded dee def dei deo der dew dfc dfd dfe dff dfi dfo dfr dfw di- dic did die dif dii dio dir diw doc dod doe dof doi doo dor dow drc drd dre dri dro drr drw dwc dwe dwf dwi dwo dwr dww ec- ecc ecd ece ecf eci eco ecr ecw ed- edc edd ede edf edi edo edr edw eec eed eee eef eeo eer eew ef- efc efd efe eff efi efo efr efw eic eid eie eif eii eio eir eo- eoc eod eoe eof eoi eoo eor eow erc erd ere erf eri ero err erw ewc ewd ewe ewf ewi ewo ewr eww fcc fcd fce fcf fci fco fcr fcw fdc fdd fde fdf fdi fdo fdr fec fed fee fef fei feo fer few ffc ffd ffe fff ffi ffo ffr ffw fic fid fie fif fii fir foc foe fof foi foo for fow frc frd fre frf fri fro frr frw fwc fwd fwe fwf fwi fwo i-d i-f icc icd ice icf ici ico icr icw idc idd ide idf idi ido idr idw ie- iec ied iee ief iei ier ifc ifd ife iff ifi ifo ifr iic iid iie iif iii iio iir iiw io- ioc iod ioe iof ioi ioo ior iow ir- irc ird ire irf iri iro irr iwc iwd iwe iwf iwi iwo iwr iww o-i oc- occ ocd ocf oci oco ocr ocw odc odd ode odf odi odo odr oec oed oee oef oei oeo oer of- ofc ofd ofe off ofi ofo ofr ofw oic oid oie oif oii oio oir oo- ooc ood oof ooi ooo oor oow or- orc ord ore orf ori oro orr owc owd owe owf owi owo oww rcc rcd rce rcf rci rco rcr rcw rdc rdd rde rdf rdi rdo rdr re- rec red ree ref rei reo rer rew rfc rfd rfe rff rfi rfo rfr rfw ric rid rie rif rii rio rir roc rod roe rof roi roo ror row rrc rrd rrf rri rrr rwc rwd rwe rwf rwi rwr wcc wcd wce wcf wci wco wcr wcw wdc wdf wdi wdr wec wed wee wef wei weo wer wew wfc wfd wfe wff wfi wfo wfr wfw wic wid wie wif wii wir woc wod woe wof woi woo wor wow wr- wrc wrd wre wrf wri wro wrr wrw wwc wwd wwe wwf wwi wwo www