import java.io.*;
import java.util.*;
public class DriverForLoops{
public static void main(String[] args){
ForLoops draco = new ForLoops();
System.out.println(draco.GCD3(9,21));
System.out.println(draco.GCD3(12,50));
System.out.println(draco.Reverse("Expelliarmus"));
System.out.println(draco.Reverse("Debate"));
System.out.println(draco.table(5,3));
System.out.println(draco.table(4,6));
}
}