C312312111111331312111133133313231333133313121211111221333132231322331   >>    C31231211111133131211113313331323133313331312121111122133313223132233   <<    C312312111111331312111133133313231333133313121211111221333132231322333   >>      C312312111111331312111133133313231333133313121211111221333132231322332   >>