import java.io.*;

class Student
{
  private String ssn;
  private String name;
  private int age;
  public String get_ssn () { return ssn; }
  public String get_name () { return name; }
  public long get_age () { return age; }
  public void set_ssn (String new_ssn) 
  { 
      ssn = new String(new_ssn);
  }    
  public void set_name (String new_name)
  {
    name = new String(new_name);
  }
  public void set_age (int new_age)
  {
    if (new_age > 0 && new_age <= 110)
      age = new_age;
    else
      System.err.println("Age is not legal");
  }
  // Provide a constructor for Student for proper initialization
  Student (String sn, String s, int y)
  {
    set_ssn(sn);
    set_name(s);
    set_age(y);
  }
  // display function
  public void display ()
  {
    System.err.println("Data for Student with Ssn: " + ssn);
    System.err.println("\tName: " + name + " Age: " + age);
  }
}