/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
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
	{
 
           String resList = "200020+ww200020";
           if(resList!=null && resList.matches("^([+]?(?:[a-zA-Z]{2})?[0-9%_]*)+")) { 
              resList =  resList.replaceAll("(?i)(?<=^|[+])[a-z]{2}([0-9%_]*)", "$1");
             System.out.println(resList); 
           }
 
	}
}