C11112331312111112111133133313331333132323133313331311212111311   >>    C1111233131211111211113313331333133313232313331333131121211131   <<    C11112331312111112111133133313331333132323133313331311212111313   >>      C11112331312111112111133133313331333132323133313331311212111312   >>