C111123313121111121111331333133313331323231333133313331333131232321123131   >>    C11112331312111112111133133313331333132323133313331333133313123232112313   <<    C111123313121111121111331333133313331323231333133313331333131232321123133   >>      C111123313121111121111331333133313331323231333133313331333131232321123132   >>