-er c-- ccc ccd cce ccn cco ccr ccw cdc cdd cde cdn cdo cdr cdw ce- cec ced cee cen ceo cer cew cn- cnc cnd cne cnn cno cnr cnw co- coc cod coe con coo cor cow crc crd cre crn cro crr crw cw- cwc cwd cwe cwn cwo cwr dcc dcd dce dcn dco dcr dcw ddc ddd dde ddn ddo ddr ddw de- dec ded dee den deo der dew dnc dnd dne dnn dno dnr dnw doc dod doe don doo dor dow drc drd dre drn dro drr drw dwc dwe dwn dwo dwr dww ec- ecc ecd ece ecn eco ecr ecw ed- edc edd ede edn edo edr edw eec eed eee een eeo eer eew en- enc end ene enn eno enr enw eo- eoc eod eoe eon eoo eor eow erc erd ere ern ero err erw ewc ewd ewe ewo ewr eww ncc ncd nce ncn nco ncr ncw ndc ndd nde ndn ndo ndr ne- nec ned nee nen neo ner new nnc nne nnn nno nnw no- noc nod noe non noo nor now nrc nrd nre nrn nro nrr nrw nwc nwd nwe nwn nwo nwr oc- occ ocd ocn oco ocr ocw odc odd ode odn odo odr oec oed oee oen oeo oer on- onc ond one onn ono onr oo- ooc ood oon ooo oor oow or- orc ord ore orn oro orr owc owd owe own owo oww rcc rcd rce rcn rco rcr rcw rdc rdd rde rdn rdo rdr re- rec red ree ren reo rer rew rnc rnd rnn rno rnr rnw roc rod roe ron roo ror row rrc rrd rrn rrr rwc rwd rwe rwr wcc wcd wce wcn wco wcr wcw wdc wdr wec wed wee wen weo wer wew wn- wnc wnd wne wnn wno wnw woc wod woe won woo wor wow wr- wrc wrd wre wrn wro wrr wrw wwc wwd wwe wwn wwo www