C3123223313331322121111331333133313331333121211113311211331333231323311   >>    C312322331333132212111133133313331333133312121111331121133133323132331   <<    C3123223313331322121111331333133313331333121211113311211331333231323313   >>      C3123223313331322121111331333133313331333121211113311211331333231323312   >>