C111123313121111121111331333133313331323231333133313311223233231   >>    C11112331312111112111133133313331333132323133313331331122323323   <<    C111123313121111121111331333133313331323231333133313311223233233   >>      C111123313121111121111331333133313331323231333133313311223233232   >>