C++ quiz. What needs to be added to lines 1 and / or 2 (and

What needs to be added to lines 1 and / or 2 (and possibly to 0) so that the values of somevar and hello variables are displayed?

class A {
private:
   int somevar;
   int hello;
public:
   A(int a, int b):somevar(a), hello(b) {}
   //1
};
//0
int main() {
   A Ob(4,5);
   //2
   return 0;
}

Instead of line 2 write:
```
std::cout << Ob.somevar << Ob.hello;
```
Instead of line 1 and further, add two methods returning the values of variables.
Instead of line 2, write
```
std::cout << Ob.getVar() << Ob.getHel();
```
In line 1, overload the output operator (add the implementation of the operator in line 0).
Instead of line 2, write:
```
std::cout << Ob;
```
It's not possible
No need to add anything, everything will be displayed with the current code

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