#include<iostream.h>
#include<string.h>
#include<conio.h>
#include<stdio.h>

class Human
{
	 private:
		 char name[40];
		 char gender[8];
		 int day,month,year;
	  public:
		Human()
		{
		   strcpy(name,"\0");
		   strcpy(gender,"\0");
		   day=month=year=0;
		}
		void ReadData()
		{
		  cout<<endl<<"Name ? ";gets(name);
		  cout<<"Gender ? ";cin>>gender;
		  cout<<"Day/Month/Year ? ";cin>>day>>month>>year;
		 }
		 void ShowData()
		 {
		   cout<<endl<<"Name : "<<name;
		   cout<<endl<<"Gender : "<<gender;
		   cout<<endl<<"Date of Birth: "<<day<<"/"<<month<<"/"<<year;
		 }
	  };
	 class Student:public Human
	 {
		 private:
			 int rno;
			 char group[8];
			 int semester;
	  public:
			 Student()
			 {
				rno=semester=0;
				strcpy(group,"\0");
			 }
			 void Show()
			 {

				 cout<<endl<<"Enter Roll Number :";cin>>rno;
				 cout<<"Enter The Group :";cin>>group;
				 cout<<"Enter The Semester :";cin>>semester;
			  }
			 void Read()
			 {
			 cout<<endl<<"Roll Number :";
			 cout<<endl<<"Group :";
			 cout<<endl<<"Semester :";
			 }
		 };
		 int main()
		 {
			clrscr();
			Student s1;
			s1.Read();
			s1.ReadData();
			s1.Show();
			s1.ShowData();

		 cout<<endl<<"The Bytes Reserved In Memory For The Whole Program is :"<<sizeof(s1);
			getch();
			return 0;
		 }