#include <iostream>
using namespace std;
class mean
{
    int a,b;
    public:
    void input()
    {
        cout<<"\nEnter a two values:";
        cin>>a>>b;
    }
    friend float result(mean m);
};
    float result(mean m)
    {
        return(m.a+m.b)/2.0;
    }
int main()
{
    cout<<"MEAN VALUE";
    mean a;
    a.input();
    cout<<"\nMean Value is "<<result(a);
    
}