#include<iostream.h>
#include<math.h>

class complex
{
  float real_part;
  float img_part;
  
  public:
  void set float x, float y)
  {
    real_part = x;
    img_part = y;
   }
   float get_real(void)   {  return real_part;  }
   float get_img(void)   {  return img_part;  }

   friend complex operator+(complex z1, complex z2);
   friend complex operator+(float a, complex z);
   friend complex operator*(float a, complex z);
 };

 complex operator+(complex z1, complex z2)
 {
   complex temp;
   temp.real_part = z1.real_part + z2.real_part;
   temp.img_part = z1.img_part + z2.img_part;
   return temp;
 }
complex operator+(float a, complex z)
 {
   complex temp;
   temp.real_part = a + z.real_part;
   temp.img_part = z.img_part;
   return temp;
 }
complex operator*(float a, complex z)
 {
   complex temp;
   temp.real_part = a * z.real_part;
   temp.img_part = a * z.img_part;
   return temp;
 }

int main()
{
 complex  c1, c2, c3, c;
 c1.set(2,4);
 c2.set(5,6);
 c3.set(3,7);

 c = c1 + c2;
 cout<<"\n the result = "<<c.get_real()<<" + i "<<c.get_img();

 c = 10 + c3;
 cout<<"\n the result = "<<c.get_real()<<" + i "<<c.get_img();

 c = 10 * c3;
 cout<<"\n the result = "<<c.get_real()<<" + i "<<c.get_img();

 return 0;
}