myucs ymucs muycs umycs yumcs uymcs mycus ymcus mcyus cmyus ycmus cymus mucys umcys mcuys cmuys ucmys cumys yucms uycms ycums cyums ucyms cuyms myusc ymusc muysc umysc yumsc uymsc mysuc ymsuc msyuc smyuc ysmuc symuc musyc umsyc msuyc smuyc usmyc sumyc yusmc uysmc ysumc syumc usymc suymc mycsu ymcsu mcysu cmysu ycmsu cymsu myscu ymscu msycu smycu ysmcu symcu mcsyu cmsyu mscyu smcyu csmyu scmyu ycsmu cysmu yscmu sycmu csymu scymu mucsy umcsy mcusy cmusy ucmsy cumsy muscy umscy msucy smucy usmcy sumcy mcsuy cmsuy mscuy smcuy csmuy scmuy ucsmy cusmy uscmy sucmy csumy scumy yucsm uycsm ycusm cyusm ucysm cuysm yuscm uyscm ysucm syucm usycm suycm ycsum cysum yscum sycum csyum scyum ucsym cusym uscym sucym csuym scuym
Note: these 'words' (valid or invalid) are all the permutations of the word myucs. These words are obtained by scrambling the letters in myucs.