C11112331312111112111133133313331333132323133313331333133313113312133111   >>    C1111233131211111211113313331333133313232313331333133313331311331213311   <<    C11112331312111112111133133313331333132323133313331333133313113312133113   >>      C11112331312111112111133133313331333132323133313331333133313113312133112   >>