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# silly.py

Not sure how to proceed

silly.py
```# The first half of the string, rounded with round(), should be lowercased.
# The second half should be uppercased.
# E.g. "Treehouse" should come back as "treeHOUSE"
def sillycase(string):
string_length = len(string)
half_string = string_length / 2
first_half = string[:half_string]
result = first_half.extend(string[half_string:])
return result
```

MOD

You are very close. A few corrections to you code. `extend()` works on lists but not on strings.

```def sillycase(string):
string_length = len(string)
# need to round when length is odd
half_string = round(string_length / 2)
first_half = string[:half_string]
# lower first half and upper second half
result = first_half.lower() + string[half_string:].upper()
return result
```

Thanks Chris! After struggling through splitting up the first_half and second_half I totally forgot to .lower() the first half and .upper() the second half. Haha

I was also wondering about issues that would arise from input(string) with an odd number of elements. So, "round()" will takes care of this?

Yes. By default `round()` rounds to the nearest integer. 3.5 becomes 4, etc.