C3123121111331312121111331333133313331333121333133313112211232233131   >>    C312312111133131212111133133313331333133312133313331311221123223313   <<    C3123121111331312121111331333133313331333121333133313112211232233133   >>      C3123121111331312121111331333133313331333121333133313112211232233132   >>