#include <iostream>
using namespace std;
class Base
{
public:
Base(int a_, int b_, int c_):a(a_),b(b_),c(c_)
{}
public:
int a;
protected:
int b;
private:
int c;
};
 
class Derived: public Base
{
public:
Derived(int a_, int b_, int c_):Base{a_,b_,c_}
{}
void func()
{
	cout<<"a "<<a<<endl;
	cout<<"b "<<b<<endl;
	//cout<<"c "<<c<<endl;
}
void print(const Derived& d)
{
	cout<<"bkbbbbb"<<endl;
	cout<<"d1 "<<d.a<<endl;
	cout<<"d2 "<<d.b<<endl;
}
 
 
};
int main() {
	// your code goes here
	Derived d{1,2,3};
	d.func();
	d.a = 10;
	d.func();
	d.print(d);
	return 0;
}

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