clitu lcitu ciltu icltu lictu ilctu cltiu lctiu ctliu tcliu ltciu tlciu citlu ictlu ctilu tcilu itclu ticlu litcu iltcu lticu tlicu itlcu tilcu cliut lciut cilut iclut licut ilcut cluit lcuit culit uclit lucit ulcit ciult icult cuilt ucilt iuclt uiclt liuct iluct luict ulict iulct uilct cltui lctui ctlui tclui ltcui tlcui cluti lcuti culti uclti lucti ulcti ctuli tculi cutli uctli tucli utcli ltuci tluci lutci ultci tulci utlci citul ictul ctiul tciul itcul ticul ciutl icutl cuitl ucitl iuctl uictl ctuil tcuil cutil uctil tucil utcil itucl tiucl iutcl uitcl tuicl uticl lituc iltuc ltiuc tliuc itluc tiluc liutc ilutc luitc ulitc iultc uiltc ltuic tluic lutic ultic tulic utlic itulc tiulc iutlc uitlc tuilc utilc
Note: these 'words' (valid or invalid) are all the permutations of the word clitu. These words are obtained by scrambling the letters in clitu.