/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Pattern;
 
/* 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 valueDate = "ciao'+test.\")%3balert(document.domain)//";
 
		Pattern pattern = Pattern.compile("[^0-9|/]", Pattern.CASE_INSENSITIVE);
        valueDate = pattern.matcher(valueDate).replaceAll("");
 
        System.out.println(valueDate);
 
 
 
	}
}

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