// $Id: strcat.java,v 1.1 2004-05-23 07:14:28 bfulgham Exp $
// http://www.bagley.org/~doug/shootout/
// Pelle Nilsson suggested we also illustrate StringBuffer
// since it is the preferred method for concatenating 
// strings in Java

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

public class strcat {
    public static void main(String args[]) throws IOException {
        int n = Integer.parseInt(args[0]);
        String hello = "hello\n";
        StringBuffer stringBuffer = new StringBuffer(32);

        for (int i=0; i<n; i++) {
            stringBuffer.append(hello);
        }

        System.out.println(stringBuffer.length());
    }
}