quich uqich qiuch iquch uiqch iuqch qucih uqcih qcuih cquih ucqih cuqih qicuh iqcuh qciuh cqiuh icquh ciquh uicqh iucqh uciqh cuiqh icuqh ciuqh quihc uqihc qiuhc iquhc uiqhc iuqhc quhic uqhic qhuic hquic uhqic huqic qihuc iqhuc qhiuc hqiuc ihquc hiquc uihqc iuhqc uhiqc huiqc ihuqc hiuqc quchi uqchi qcuhi cquhi ucqhi cuqhi quhci uqhci qhuci hquci uhqci huqci qchui cqhui qhcui hqcui chqui hcqui uchqi cuhqi uhcqi hucqi chuqi hcuqi qichu iqchu qcihu cqihu icqhu ciqhu qihcu iqhcu qhicu hqicu ihqcu hiqcu qchiu cqhiu qhciu hqciu chqiu hcqiu ichqu cihqu ihcqu hicqu chiqu hciqu uichq iuchq ucihq cuihq icuhq ciuhq uihcq iuhcq uhicq huicq ihucq hiucq uchiq cuhiq uhciq huciq chuiq hcuiq ichuq cihuq ihcuq hicuq chiuq hciuq
Note: these 'words' (valid or invalid) are all the permutations of the word quich. These words are obtained by scrambling the letters in quich.