carrs acrrs crars rcars arcrs racrs carrs acrrs crars rcars arcrs racrs crras rcras crras rcras rrcas rrcas arrcs rarcs arrcs rarcs rracs rracs carsr acrsr crasr rcasr arcsr racsr casrr acsrr csarr scarr ascrr sacrr crsar rcsar csrar scrar rscar srcar arscr rascr asrcr sarcr rsacr sracr carsr acrsr crasr rcasr arcsr racsr casrr acsrr csarr scarr ascrr sacrr crsar rcsar csrar scrar rscar srcar arscr rascr asrcr sarcr rsacr sracr crrsa rcrsa crrsa rcrsa rrcsa rrcsa crsra rcsra csrra scrra rscra srcra crsra rcsra csrra scrra rscra srcra rrsca rrsca rsrca srrca rsrca srrca arrsc rarsc arrsc rarsc rrasc rrasc arsrc rasrc asrrc sarrc rsarc srarc arsrc rasrc asrrc sarrc rsarc srarc rrsac rrsac rsrac srrac rsrac srrac
Note: these 'words' (valid or invalid) are all the permutations of the word carrs. These words are obtained by scrambling the letters in carrs.