Driver.java

import java.io.*;
import java.util.*;
public class Driver{
    public static void main(String[] args){
        classjavawork a = new classjavawork();
        System.out.println(a.toString(a.RevFill(6)));
        System.out.println(a.toString(a.MakeRandom(6,4,10)));
	System.out.println(a.sum13);
	System.out.println(a.modThree);
    }
}