C111123313121111121111331333133313331333132232233133311233131232311   >>    C11112331312111112111133133313331333133313223223313331123313123231   <<    C111123313121111121111331333133313331333132232233133311233131232313   >>      C111123313121111121111331333133313331333132232233133311233131232312   >>