C3123223313331322121111331333133313331333121211113313331323232132232311   >>    C312322331333132212111133133313331333133312121111331333132323213223231   <<    C3123223313331322121111331333133313331333121211113313331323232132232313   >>      C3123223313331322121111331333133313331333121211113313331323232132232312   >>