/* 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 Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		  StringBuffer a = new StringBuffer("One");
          StringBuffer b = new StringBuffer("Two");
          swap(a, b);
          System.out.println("a is " + a + "\nb is " + b);
	}
	 static void swap(StringBuffer a, StringBuffer b) {
       a.append(" more");
       b = a;
}
}

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