cuddy ucddy cdudy dcudy udcdy ducdy cuddy ucddy cdudy dcudy udcdy ducdy cdduy dcduy cdduy dcduy ddcuy ddcuy uddcy dudcy uddcy dudcy dducy dducy cudyd ucdyd cduyd dcuyd udcyd ducyd cuydd ucydd cyudd ycudd uycdd yucdd cdyud dcyud cydud ycdud dycud ydcud udycd duycd uydcd yudcd dyucd yducd cudyd ucdyd cduyd dcuyd udcyd ducyd cuydd ucydd cyudd ycudd uycdd yucdd cdyud dcyud cydud ycdud dycud ydcud udycd duycd uydcd yudcd dyucd yducd cddyu dcdyu cddyu dcdyu ddcyu ddcyu cdydu dcydu cyddu ycddu dycdu ydcdu cdydu dcydu cyddu ycddu dycdu ydcdu ddycu ddycu dydcu yddcu dydcu yddcu uddyc dudyc uddyc dudyc dduyc dduyc udydc duydc uyddc yuddc dyudc ydudc udydc duydc uyddc yuddc dyudc ydudc ddyuc ddyuc dyduc ydduc dyduc ydduc
Note: these 'words' (valid or invalid) are all the permutations of the word cuddy. These words are obtained by scrambling the letters in cuddy.