def main():
	# n,m = map(int,input().split())
	# n,k = map(int,input().split())
	# n = int(input())
	# a = list(map(int,input().split()))
	# rsp = list(str(input()))
	# l = [list(map(int, input().split())) for _ in range(n)]
	# s = list(s)
	
	a = int(input())
	s = int(input())

	if a >= 3200:
		print("red")
	else:
		print(s)


 
if __name__ == '__main__':
	main()