import java.util.Arrays;
import java.util.ArrayList;
import java.util.List;

public class ParallelAccumulator {
    public static void main(String[] args) {
        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
        List<Integer> evenNumbers = new ArrayList<>();

        // Using a parallel stream to filter even numbers and add them to evenNumbers
        numbers.parallelStream()
               .filter(n -> n % 2 == 0)
               .forEach(n -> evenNumbers.add(n));

        System.out.println("Even numbers: " + evenNumbers);
    }
}