C312312111111331312111133133313231333133313121211113313232233313232233131333131   >>    C31231211111133131211113313331323133313331312121111331323223331323223313133313   <<    C312312111111331312111133133313231333133313121211113313232233313232233131333133   >>      C312312111111331312111133133313231333133313121211113313232233313232233131333132   >>