crith rcith cirth icrth ricth ircth crtih rctih ctrih tcrih rtcih trcih citrh ictrh ctirh tcirh itcrh ticrh ritch irtch rtich trich itrch tirch criht rciht cirht icrht richt ircht crhit rchit chrit hcrit rhcit hrcit cihrt ichrt chirt hcirt ihcrt hicrt rihct irhct rhict hrict ihrct hirct crthi rcthi ctrhi tcrhi rtchi trchi crhti rchti chrti hcrti rhcti hrcti cthri tchri chtri hctri thcri htcri rthci trhci rhtci hrtci thrci htrci cithr icthr ctihr tcihr itchr tichr cihtr ichtr chitr hcitr ihctr hictr cthir tchir chtir hctir thcir htcir ithcr tihcr ihtcr hitcr thicr hticr rithc irthc rtihc trihc itrhc tirhc rihtc irhtc rhitc hritc ihrtc hirtc rthic trhic rhtic hrtic thric htric ithrc tihrc ihtrc hitrc thirc htirc
Note: these 'words' (valid or invalid) are all the permutations of the word crith. These words are obtained by scrambling the letters in crith.