#include<iostream.h>
class duck{
public:
char *duckname;
int itsage;
int feed;
int farm();
int setage(int a);
void working();
duck();
~duck();
};
duck::duck(){
cout << "µÚ¶×¶Ù¶×";
}
int duck::setage(int age){
int itsage=age;
return itsage;
}

int duck::farm(){
int feed = 2*itsage;
return feed;
}
duck::~duck(){
cout << "²Ð²Ð";
}
void duck::working(){
int i;
for(i=0;i<=feed;i++)
{
cout << "*";
i++;
}
cout << "¹è°íÆÄ!!"; 
}
void main(){
duck white;
white.setage(10);
white.duckname="WhiteDUCK";
cout << "My name is" << white.duckname << endl;
cout << "My age is" << white.itsage << endl;
white.working();
duck blue;
blue.setage(7);
blue.duckname="BlueDUCK";
cout << "My name is" << blue.duckname << endl;
cout << "My age is" << blue.itsage <<endl;
blue.working();
duck black;
black.setage(5);
black.duckname="BlackDUCK";
cout << "My name is" << black.duckname << endl;
cout << "My age is" << black.itsage << endl;
black.working();
}