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#include <iostream>
using namespace std;
class A
{
public:
A()
{
cout<<"Constructor1_A"<< x << endl;
}
A( int m ) : x( m )
{
cout<<"Constructor2_A"<< x << endl;
}
~A()
{
cout<<"Destructor_A"<< x << endl;
}
private:
int x;
};
class B : public A
{
public:
B()
{
cout<<"Constructor1_B"<< y << endl;
}
B( int m, int n, int l ) : A( m ), a( n ), y( l )
{
cout<<"Constructor2_B"<< y <<endl;
}
~B()
{
cout<<"Destructor_B"<< y << endl;
}
private:
A a;
int y;
};
int main()
{