package _7_SETS_AND_MAPS_ADVANCED.Exercise;

        import java.util.Arrays;
        import java.util.LinkedHashSet;
        import java.util.Scanner;
        import java.util.Set;

public class _2_Sets_Of_Elements {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int[] nAndM = Arrays.stream(sc.nextLine().split("\\s+"))
                .mapToInt(Integer::parseInt).toArray();
        int nLength  = nAndM[0];
        int mLength  = nAndM[1];

        Set<Integer> n = new LinkedHashSet<>();
        Set<Integer> m = new LinkedHashSet<>();

        for (int i = 0; i < nLength; i++) {
            n.add(Integer.parseInt(sc.nextLine()));
        }

        Set<Integer> repeating = new LinkedHashSet<>();

        for (int i = 0; i < mLength; i++) {
            int newNumb = Integer.parseInt(sc.nextLine());

            m.add(newNumb);

        }
            n.forEach(e-> {
                if(m.contains(e)){
                    repeating.add(e);
                }
            });

        repeating.forEach(e-> System.out.print(e+" "));


    }
}