Write a C++ program for friend operator.

#include <iostream.h> 
 #include<conio.h> 
 class Num 
 { 
        friend Num operator+(Num ob, int i); 
        friend Num operator+(int i, Num ob); 
        int count; 
        public: 
                      Num(int cc=0) 
               { 
                      count=cc; 
                } 
                      Num& operator=(int i); 
                      void Show() 
               { 
                      cout<<count<<endl; 
                } 
  }; 
                      Num& Num::operator=(int i) 
               { 
                      count=i; 
                      return *this; 
                } 
                      Num operator+(Num ob, int i) // This handles ob+int. 
               { 
                      Num temp; 
                      temp.count=ob.count+i; 
                      return temp; 
                } 
                      Num operator+(int i, Num ob) // This handles int+ob .. 
                { 
                      Num temp; 
                      temp.count=ob.count+i; 
                      return temp; 
                } 
                      void main() 
                { 
                      clrscr(); 
                      Num obj; 
                      obj=10; 
                      obj.Show(); 
                      obj=10+obj; 
                      obj.Show(); 
                      obj=obj+ 12; 
                      obj.Show(); 
                      getch(); 
                } 
 Output: 
 10 
 20 
 32