C11112331312111112111133132313331333133313233313331311331333233133313122331   >>    C1111233131211111211113313231333133313331323331333131133133323313331312233   <<    C11112331312111112111133132313331333133313233313331311331333233133313122333   >>      C11112331312111112111133132313331333133313233313331311331333233133313122332   >>