#include <iostream.h>
class Value 
  {
    protected:
      int val;
    public:
      void set_values (int a)
        { val=a;}
  };
class Cube: public Value 
  {
    public:
     int cube()
       { return (val*val*val); }
  };
int main () 
 {
   Cube cub;
   cub.set_values (5);
   cout << "The Cube of 5 is::" << cub.cube() << endl;
   return 0;
 }