/* package whatever; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Sample
{
	public static void main (String[] args) 
	{
	String nullVar  = null;
	String emptyVar = "";

	
	String newNullVar = nullVar + "Some,String";
	String newEmptyVar = emptyVar + "Some,String";
	

	
	System.out.println(newNullVar + " & length is " +newNullVar.length());
	System.out.println(newEmptyVar +  " & length is " +newEmptyVar.length());
	
	
	}
}