import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "Market participants are requested to note that stock with code 83199 has multiple counters (stock codes: USD counter: 3199, EUR counter: 83199 and SWF counter: 9199) trading in their corresponding currency.";
		Pattern pattern = Pattern.compile("(?:\\G(?!^)|\\(stock)[^()\\d]*(\\d+)(?=[^()]*\\))");
		Matcher matcher = pattern.matcher(s);
		while (matcher.find()){
			System.out.println(matcher.group(1)); 
		} 
	}
}

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