Note: (Restricted functionality due to obvious reasons!)
Minimal Code ( Raw-View ) :
#include<iostream.h>
#include<conio.h>
class sum
{
int i;
public:
void f1(){cout<<"Enter a numbers : ";cin>>i;}
void add(sum x,sum y){int p = x.i+y.i;cout<<"The sum is = "<<p;}
}p,q,r;
void main()
{
p.f1();
q.f1();
r.add(p,q);
}