luser ulser lsuer sluer usler suler luesr ulesr leusr elusr uelsr eulsr lseur sleur lesur elsur selur eslur uselr suelr ueslr euslr seulr esulr lusre ulsre lsure slure uslre sulre lurse ulrse lruse rluse urlse rulse lsrue slrue lrsue rlsue srlue rslue usrle surle ursle rusle srule rsule luers ulers leurs elurs uelrs eulrs lures ulres lrues rlues urles rules lerus elrus lreus rleus erlus relus uerls eurls urels ruels eruls reuls lseru sleru lesru elsru selru eslru lsreu slreu lrseu rlseu srleu rsleu lersu elrsu lresu rlesu erlsu relsu serlu esrlu srelu rselu erslu reslu userl suerl uesrl eusrl seurl esurl usrel surel ursel rusel sruel rsuel uersl eursl uresl ruesl erusl reusl serul esrul sreul rseul ersul resul
Note: these 'words' (valid or invalid) are all the permutations of the word luser. These words are obtained by scrambling the letters in luser.