C312312111111331312111133133313231333131133132231333133313223313111211   >>    C31231211111133131211113313331323133313113313223133313331322331311121   <<    C312312111111331312111133133313231333131133132231333133313223313111213   >>      C312312111111331312111133133313231333131133132231333133313223313111212   >>