C3123223313331322121111331333133313331333121211113313221211331311333311   >>    C312322331333132212111133133313331333133312121111331322121133131133331   <<    C3123223313331322121111331333133313331333121211113313221211331311333313   >>      C3123223313331322121111331333133313331333121211113313221211331311333312   >>