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

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

/* 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
	{
		System.out.println(getZipcode("What is the weather in 75042?"));
	}
	
	public static String getZipcode(String inputLine) {

        Pattern pattern = Pattern.compile("\\D+(\\d+)\\D+");
        Matcher matcher = pattern.matcher(inputLine);

        if (matcher.find()) {

            return matcher.group(1).toString();
        }

        return "Zipcode Not Found.";

    }
}