# include<iostream.h>
# include<conio.h>
class myclass
{
 public:
  int a,b;
  myclass()
  {
   a=10;
   b=20;
  }
  myclass(int a1)
  {
   a=a1;
   b=30;
  }
  myclass(int a1,int b1)
  {
   a=a1;
   b=b1;
  }
  void put()
  {
   cout<<"A="<<a<<endl;
   cout<<"B="<<b<<endl;
  }
};
void main()
{
 clrscr();
 myclass m1;
 myclass m2(40);
 myclass m3(50,60);
 m1.put();
 m2.put();
 m3.put();
 getch();
}