class A 
{ 
public: 
    int l; 
 
protected: 
    int m; 
 
private: 
    int n; 
}; 
 
 
class B : public A 
{ 
public: 
    int l; 
 
protected: 
    int m; 
     
    void func2() 
    { 
        l = A::l;   // 1 
        m = A::m;   // 2 
        n = A::n;   // 3 
    } 
 
private: 
    int n; 
};