CommonElem_ListToString

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

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

        String firstArray = scanner.nextLine();
        String secondArray = scanner.nextLine();

        String[] first = firstArray.split(" ");
        String[] second = secondArray.split(" ");

        ArrayList<String> ar = new ArrayList<String>();
        String list = "";

        for (int i = 0; i < second.length; i++) {
            if (Arrays.asList(first).contains(second[i])) ar.add(second[i]);
            list = String.join(" ", ar);
        }
        System.out.println(list);
    }
}