# include<iostream.h>
# include<conio.h>
class A
{
 public:
  int a,b;
  void show()
  {
   cout<<"Enter value :";
   cin>>a;
   cout<<"Enter value :";
   cin>>b;
  }
};
class B :public A
{
 public:
  void show1()
  {
   cout<<"SUM="<<a+b<<endl;
  }
};
class C : public A
{
 public:
  void show2()
  {
   cout<<"SUB="<<a-b<<endl;
  }
};
void main()
{
 clrscr();
 B obj;
 C obj1;
 obj.show();
 obj.show1();
 obj1.show2();
 getch();
}