C111123313121111121111331333133313331322121111331333133313232313233111   >>    C11112331312111112111133133313331333132212111133133313331323231323311   <<    C111123313121111121111331333133313331322121111331333133313232313233113   >>      C111123313121111121111331333133313331322121111331333133313232313233112   >>