C312312111111331312111133133313231333131133132231333133313223313113313232321131   >>    C31231211111133131211113313331323133313113313223133313331322331311331323232113   <<    C312312111111331312111133133313231333131133132231333133313223313113313232321133   >>      C312312111111331312111133133313231333131133132231333133313223313113313232321132   >>