UVa Problem ID 594 (One Little, Two Little, Three Little Endians)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws IOException 
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String input;
        StringBuffer sb=new StringBuffer("");
       
        while((input=br.readLine())!=null)
        {
        	int n=Integer.parseInt(input);
        	sb.append(n+" converts to "+Integer.reverseBytes(n)+"\n");
        }
        System.out.print(sb);
    }
}