-er c-- ccc cce ccn cco ccr ccw ce- cec cee cen ceo cer cew cn- cnc cne cnn cno cnr cnw co- coc coe con coo cor cow crc cre crn cro crr crw cw- cwc cwe cwn cwo cwr ec- ecc ece ecn eco ecr ecw eec eee een eeo eer eew en- enc ene enn eno enr enw eo- eoc eoe eon eoo eor eow erc ere ern ero err erw ewc ewe ewo ewr eww ncc nce ncn nco ncr ncw ne- nec nee nen neo ner new nnc nne nnn nno nnw no- noc noe non noo nor now nrc nre nrn nro nrr nrw nwc nwe nwn nwo nwr oc- occ ocn oco ocr ocw oec oee oen oeo oer on- onc one onn ono onr oo- ooc oon ooo oor oow or- orc ore orn oro orr owc owe own owo oww rcc rce rcn rco rcr rcw re- rec ree ren reo rer rew rnc rnn rno rnr rnw roc roe ron roo ror row rrc rrn rrr rwc rwe rwr wcc wce wcn wco wcr wcw wec wee wen weo wer wew wn- wnc wne wnn wno wnw woc woe won woo wor wow wr- wrc wre wrn wro wrr wrw wwc wwe wwn wwo www