C31231211111133131211113313331333133313332233133313332213111211   >>    C3123121111113313121111331333133313331333223313331333221311121   <<    C31231211111133131211113313331333133313332233133313332213111213   >>      C31231211111133131211113313331333133313332233133313332213111212   >>