heads=input('头')feet=input('脚')
heads=int(heads)
feet=int(feet)
def G ():
global chicken
global rabbit
for chicken in range(heads+1):
rabbit=heads-chicken
if chicken*2+rabbit*4==feet:
print(chicken)
print(rabbit)
break
G()
heads=input('头')
feet=input('脚')
heads=int(heads)
feet=int(feet)
for chicken in range(heads+1):
rabbit=heads-chicken
if chicken*2+rabbit*4==feet:
print(chicken)
print(rabbit)
break