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# Someone can help me? What is wrong with my solution?

What is wrong with my code? Someone can help me? Thanks!

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(p):
palavra_lista = list(p)
l=int(len(palavra_lista))
c=l/2
c=int(c)

priparte=palavra_lista[:c]
pri.join(priparte)
pri=pri.upper()

segparte=palavra_lista[c:]
seg.join(segparte)
seg=seg.lower()

fim=pri+seg
return fim
```

STAFF

Hey Tulio, I have added comments to your code to explain. Please see below. Also you don't have to turn 'p' into a list.

```def sillycase(p):
palavra_lista = p
l=int(len(palavra_lista))
c=round(l/2)
#c=int(c) not necessary you can use round()

priparte=palavra_lista[:c]
# pri.join(priparte) cannot call pri before initializing it
#pri=pri.upper()

segparte=palavra_lista[c:]
#seg.join(segparte) cannot call seg before initializing it
#seg=seg.lower()

fim= priparte.lower() + segparte.upper()
return fim
```

Cheers, Andi

You cannot use a fraction as a slice element. Assigning c to 1/2 does not work, because you can not do this : "string"(1/2: ) -- both sides must refer to integer values. And casting 1/2 as an int returns 0.