num6.py

heads, legs = map(float, raw_input().split())
chickens = legs/2
cows = 0

while heads < cows + chickens:
 	chickens -= 2
	cows += 1
if cows*4 + chickens*2 == legs and cows + chickens == heads:
	print "There are %d chickens and %d cows." % (chickens, cows)
else: 
	print "No Solution"