//Àý19.1  ¼òµ¥µÄ°üº¬

#include <iostream>
using namespace std;
class A 
{
public:
	A(){x=0;}
	A(int i){x=i;}
	void get(){cout<<x;}
	~A(){}
private:
	int x;
};
class B 
{
public:
	B(){y=0;}
	B(int i,int j,int k):a(i),b(j){y=k;}
    A geta(){return a;}
	A getb(){return b;}
	int gety(){return y;}
private:
	A a;
	A b;
	int y;
};
int main()
{
	B b(1,2,3);
	b.geta().get();
	b.getb().get();
	cout<<b.gety();
	return 0;
}