C111123313121111121111331333133313331333133313331333133313331333113323311   >>    C11112331312111112111133133313331333133313331333133313331333133311332331   <<    C111123313121111121111331333133313331333133313331333133313331333113323313   >>      C111123313121111121111331333133313331333133313331333133313331333113323312   >>