/*
    Class A{
    public:
        int x; 
        int y
    private:
    int z;
    }

    Class B{
    private:
        int a,b;
    public:
    int c;
    }


    Class C: public A, public B

    A *aobj;
    C *obj;
    B *bobj;

    multiple inheritance^ is bad
    multi level inheritance is good
*/