import java.util.Scanner;

import java.util.*;

public class Cjava {

public static void main(String[]args) {

Student1 s1=new Student1();

s1.get_value();

s1.get_value1();

s1.display();

s1.display_1();

    }

}

class Student{

    private int num;private String name;private char sex;

    public void get_value() {

        Scanner s=new Scanner(System.in);

        num=s.nextInt();

        String s2;

        s2=s.next();

        sex=s2.charAt(0);

        Scanner s3=new Scanner(System.in);

        name=s3.nextLine();

    }

    public void display() {

        System.out.println("num:"+num);

        System.out.println("name:"+name);

        System.out.println("sex:"+sex);

    }

}

class Student1 extends Student{

    private int age;private String addr;

    public void display_1() {

        System.out.println("age:"+age);

        System.out.println("address:"+addr);

    }

    public void get_value1() {

        age=19;addr="shandong";

    }

}