GreenApelsin

x = int(input())  # задаем X

if (x >= -2.4) and (x <= 5.7):

   print(x * x)

else:

   print("4")

69DANECHKA69

x=int(input('x='))

if x>=-2,4 and x<=5,7:

   f=x**2

else:

   f=4

print(f'f(x) = {f}')