rarco arrco rraco rraco arrco rarco racro arcro rcaro craro acrro carro rrcao rrcao rcrao crrao rcrao crrao arcro racro acrro carro rcaro craro raroc arroc rraoc rraoc arroc raroc raorc arorc roarc orarc aorrc oarrc rroac rroac rorac orrac rorac orrac arorc raorc aorrc oarrc roarc orarc racor arcor rcaor craor acror caror raocr arocr roacr oracr aorcr oarcr rcoar croar rocar orcar corar ocrar acorr caorr aocrr oacrr coarr ocarr rrcoa rrcoa rcroa crroa rcroa crroa rroca rroca rorca orrca rorca orrca rcora crora rocra orcra corra ocrra rcora crora rocra orcra corra ocrra arcor racor acror caror rcaor craor arocr raocr aorcr oarcr roacr oracr acorr caorr aocrr oacrr coarr ocarr rcoar croar rocar orcar corar ocrar
Note: these 'words' (valid or invalid) are all the permutations of the word rarco. These words are obtained by scrambling the letters in rarco.