C312312111133131212111133133313231333132311331333133313232233132232311   >>    C31231211113313121211113313331323133313231133133313331323223313223231   <<    C312312111133131212111133133313231333132311331333133313232233132232313   >>      C312312111133131212111133133313231333132311331333133313232233132232312   >>