I want to point to the item that is on each list. Lists are kept in List <Set >.
The point is, in each of the lists, it stores several numbers.
I want to add to qSE the numbers that will appear in each of the lists.
What should I add in the code to make it work as it should?

```
public static Set<Integer> getSameElements(List<Set<Integer>> listOfElements){
    Set<Integer> gSE = new HashSet<>();
    for (Set<Integer> list : listOfElements){
        for (int number : list){

            }
        }
    }
    return gSE;
}

```