# Imagine a circle and two squares: a smaller and a bigger one.
# For the smaller one, the circle is a circumcircle and for the bigger one,
# an incircle.

# Create a function, that takes an integer (radius of the circle)
# and returns the square area of the square inside the circle.

def square_areas_difference(x):
    return 2 * x**2


print(square_areas_difference(7))
