C3123223313331322121111331333133313331333121211113313113313221313111   >>    C312322331333132212111133133313331333133312121111331311331322131311   <<    C3123223313331322121111331333133313331333121211113313113313221313113   >>      C3123223313331322121111331333133313331333121211113313113313221313112   >>