import java.io.*;

public class person{


private String first;
private String last;
private double avg;


public person()
 {
}


public person(String f, String l, double d)
 {
 }

public person(String f, String l)
{

}

public void printName()
 {

 }

public double getAvg()
 {

 }

public void printAvg()
 {

 }

public void SetAvg(double av)
 {

 }

public void changeName(String f, String l)
{

}

public void enterName()  // from keyboard
 {


 }

}