#include <iostream>
using namespace std;
class base_one
{
    public:
    int num1;
};
class derive:public base_one
{
    public:
    derive()
    {
        num1=2;
    }
};
class base_two
{
    public:
    int num2;
    base_two()
    {
        num2=5;
    }
};
class final:public derive,public base_two
{
    public:
    void sum()
    {
        cout<<"\n The Sum is : "<<num1+num2;
    }
};