5-3

#include <iostream>
using namespace std;
class Student{
public:
   void get_value()
   {cin>>num>>name>>sex;}
   void display()
   {
    cout<<"num:"<<num<<endl;
	cout<<"name:"<<name<<endl;
	cout<<"sex:"<<sex<<endl;
   }
protected:
	int num;
	char name[10];
	char sex;
};
class Student1:protected Student{
public:
	void getvalue()
	{
     get_value();
	 cin>>age>>addr;
	}
	void show()
	{
	 cout<<"num:"<<num<<endl;
	 cout<<"name:"<<name<<endl;
	 cout<<"sex:"<<sex<<endl;
	 cout<<"age:"<<age<<endl;
	 cout<<"address:"<<addr<<endl;
	}
private:
	int age;
	char addr[10];
};
int main()
{
 Student1 stud;
 stud.getvalue();
 stud.show();
 return 0;
}