I'm pretty sure this is right, even if I don't completely understand the `range`

function yet.

```
n = [3, 5, 7]
def returnSum(numbers):
result = 0
for i in numbers:
result += numbers(i)
return result
def total(numbers):
elements = 0
for i in range(len(numbers)):
elements += i
return elements
```

I get an error in the "total" function. Help?