package function_composition;
import java.util.*;

class Sample {                                         
  public static void main(String[] args) {
    List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
            
    System.out.println(
      numbers.stream()
             .filter(e -> e % 2 == 0)
             .mapToInt(e -> e * 2)
             .sum());
  }
}