//15_2_2

#include <iostream.h>

class Animal;

void SetValue(Animal&, int);
void SetValue(Animal&, int, int);

class Animal{
public:
  void Set(int v);
  void Set(int v, int w);
protected:
  int itsWeight;
  int itsAge;
};

void Animal::Set(int v){ itsWeight = v; }
void Animal::Set(int v, int w){ itsWeight=v; itsAge=w; }
void SetValue(Animal& ta, int tw){ ta.Set(tw); }
void SetValue(Animal& ta, int tw, int tn){ ta.Set(tw,tn); }

void main()
{
  Animal peppy;
  SetValue(peppy, 5);
  SetValue(peppy,7,9);
}