import java.io.*;
import java.util.*;
public class Driver {
public static void main(String[] args) {
Greeter g,g2;
g = new Greeter();
System.out.println(g.greetSad("Tom"));
System.out.println(g.greetHappy("Sue"));
g2= new Greeter ("Heyo", "Get away");
System.out.println(g2.greetSad("Tom"));
System.out.println(g2.greetHappy("Lisa"));
}
}