/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Matcher;
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 input = "javascript:submitForm(document.voip_call_log,30,0,'5555','',0,'');";
        Pattern pattern = Pattern.compile(",'(\\d*)',");
        Matcher matcher = pattern.matcher(input);
        matcher.find();
        String out = matcher.group(1);
        System.out.println(out);
	}
}

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