C11112331312111112111133133313331333133313123313331311331333132332322231   >>    C1111233131211111211113313331333133313331312331333131133133313233232223   <<    C11112331312111112111133133313331333133313123313331311331333132332322233   >>      C11112331312111112111133133313331333133313123313331311331333132332322232   >>