import java.util.regex.*;
        class Main {
                public static void main(String args[])
                {
                        Pattern MY_PATTERN = Pattern.compile(".*(\\(\\d+\\))");
                        Matcher mat = MY_PATTERN.matcher("Class (102) (401)");
                        while (mat.find()){
                                System.out.println("--"+mat.group(1));
                        }
 
                }
        }
 

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