A=1309020564363155364990198847863210152708042104341971929
M=input()
while M%2==0:
	M/=2

S=set([3,5,7,11,13,17,19,23,29,31,37])

#for s in S:
#	print s,M%s
	

if M in S:
	if A%M%2==0:
		print "even"
	else:
		print "odd"
else:
	assert 0