I need to find the index of an element in a list that is NOT a part of a specific sublist. 

Here is an example: 

```
List = [0,0,0,1,1,1,1,0,0,0,1,0,0]

```

I have a function to determine if a list is a sublist of a larger list, but I don't know how to use that in this context, since the isolated `1` could be at the beginning or at the end of list. There will always be four consecutive `1`s and one isolated `1`.

Input is a list with four consecutive `1`s and one isolated `1`. All other elements are `0`. 

The output should be the location(index) of the isolated element, in this example `10`.