https://www.codecademy.com/courses/python-beginner-c7VZg/1/2?curriculum_id=4f89dab3d788890003000096#

File "python", line 9

square(10):

^

IndentationError: unindent does not match any outer indentation level

Oops, try again. Your code looks a bit off. Check the Hint if you need help! Your code threw the following error: unindent does not match any outer indentation level (python, line 9)

I expected it to return the square of 10. I tried several different things but the code above is just the one I choose to submit. I don't understand what the instructions are asking me to do.

```
Replace this line with your code.
square(10):
"""Returns the square of 10"""
squared = 10**2
print "%d squared is %d." (10, squared)
return squared
```