C3123223313331322121111331333133313331333121211111133131333132313111   >>    C312322331333132212111133133313331333133312121111113313133313231311   <<    C3123223313331322121111331333133313331333121211111133131333132313113   >>      C3123223313331322121111331333133313331333121211111133131333132313112   >>