C11112331312111112111133133313331333132323133313331333131123312331111   >>    C1111233131211111211113313331333133313232313331333133313112331233111   <<    C11112331312111112111133133313331333132323133313331333131123312331113   >>      C11112331312111112111133133313331333132323133313331333131123312331112   >>