C3123223313331322121111331333133313231333132212111133133311221123121223213311   >>    C312322331333132212111133133313331323133313221211113313331122112312122321331   <<    C3123223313331322121111331333133313231333132212111133133311221123121223213313   >>      C3123223313331322121111331333133313231333132212111133133311221123121223213312   >>