A=1309020564363155364990198847863210152708042104341971929
M=input()

if M==1:
	print "even"
else:
	D=1
	while M%2==0:
		M /= 2
		D *= 2

	if M==1:
		print "odd"
	else:
		MM=A%M
		while D>1 and MM%2==0:
			MM /= 2
			D /= 2

		if MM%2==0:
			assert 0
		else:
			print "odd"