#include<iostream.h>
#include<conio.h>
class number
{
	   public:
		 void getdata()
		 {
		 cout<<"byee";
		 }
};
void addition:public number
{
	     public:
		    void putdata()
		    {
		    cout<<"hii";
		    }
};
void subtraction:public number
{
	   public:
		 void display()
		 {
		 cout<<"byee";
		 }
};
void multiplication:public number
{
	   public:
	      void putchar()
	      {
	      cout<<"hello";
	      }
};
void main()
{
	 clrscr();
	 number a;
	 a.getdata();
	 a.putdata();
	 a.display();
	 a.putchar();
	 getch();
}