C11112331312111112111133133313331333132323133313331311212111133133313113311211   >>    C1111233131211111211113313331333133313232313331333131121211113313331311331121   <<    C11112331312111112111133133313331333132323133313331311212111133133313113311213   >>      C11112331312111112111133133313331333132323133313331311212111133133313113311212   >>