Driver.java

import java.util.*;
import java.io.*;

public class Driver {
    public static void main (String args[]) {
	Loops l = new Loops();
	//System.out.println(l.fact(0));
	//System.out.println(l.fact(5));
	//System.out.println(l.fact(10));
	//System.out.println(l.gcd(541,331));
	//System.out.println(l.gcd2(541,331));
	//System.out.println(l.isPrime(6521376));
	System.out.println(l.factFor(4));
    }
}