import java.util.*;
import java.lang.*;
import java.net.URLDecoder;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
            String url = "http:\\/\\/a6.sphotos.ak.fbcdn.net\\/hphotos-ak-snc7\\/s2048x2048\\/582167_359167994154900_1489271360_n.jpg";
            System.out.println("Before : " + url);
            System.out.println("decoded: " + URLDecoder.decode(url));
	}
}