C11112331312111112111133133313331333132323133313331333133313311211111211211111   >>    C1111233131211111211113313331333133313232313331333133313331331121111121121111   <<    C11112331312111112111133133313331333132323133313331333133313311211111211211113   >>      C11112331312111112111133133313331333132323133313331333133313311211111211211112   >>