C11112331312111112111133133313231333133313331333132332313223213232311   >>    C1111233131211111211113313331323133313331333133313233231322321323231   <<    C11112331312111112111133133313231333133313331333132332313223213232313   >>      C11112331312111112111133133313231333133313331333132332313223213232312   >>