Please help me!

def square(n):

"""Returns the square of a number."""

squared = n**2

print "%d squared is %d." % (n, squared)

return squared

# Call the square function on line 9! Make sure to

# include the number 10 between the parentheses.

parentheses 10 square()

Oops, try again.

Your code looks a bit off. Check the Hint if you need help! Your

code threw the following error: invalid syntax (python, line 9)

I don't know how to do that.