x = 3
if x < -4:
y = -4.0
elif x < 0:
y = (x + 4)**2/4.0 - 4.0
elif x < 4:
y = 4.0 - (x - 4)**2/4.0
else:
y = 4.0
print(x, y)
x = 3
if x < -4:
y = -4.0
elif x < 0:
y = (x + 4)**2/4.0 - 4.0
elif x < 4:
y = 4.0 - (x - 4)**2/4.0
else:
y = 4.0
print(x, y)