C1111233131211111211113313331333133313331122212111111331333132323132323311   >>    C111123313121111121111331333133313331333112221211111133133313232313232331   <<    C1111233131211111211113313331333133313331122212111111331333132323132323313   >>      C1111233131211111211113313331333133313331122212111111331333132323132323312   >>