confs ocnfs cnofs ncofs oncfs nocfs cofns ocfns cfons fcons ofcns focns cnfos ncfos cfnos fcnos nfcos fncos onfcs nofcs ofncs foncs nfocs fnocs consf ocnsf cnosf ncosf oncsf nocsf cosnf ocsnf csonf sconf oscnf socnf cnsof ncsof csnof scnof nscof sncof onscf noscf osncf soncf nsocf snocf cofsn ocfsn cfosn fcosn ofcsn focsn cosfn ocsfn csofn scofn oscfn socfn cfson fcson csfon scfon fscon sfcon ofscn foscn osfcn sofcn fsocn sfocn cnfso ncfso cfnso fcnso nfcso fncso cnsfo ncsfo csnfo scnfo nscfo sncfo cfsno fcsno csfno scfno fscno sfcno nfsco fnsco nsfco snfco fsnco sfnco onfsc nofsc ofnsc fonsc nfosc fnosc onsfc nosfc osnfc sonfc nsofc snofc ofsnc fosnc osfnc sofnc fsonc sfonc nfsoc fnsoc nsfoc snfoc fsnoc sfnoc
Note: these 'words' (valid or invalid) are all the permutations of the word confs. These words are obtained by scrambling the letters in confs.