import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Scanner;
import java.util.stream.Collectors;
class CollectionUtils {
public static Collection<String> filterPhones(Collection<String> phones,
Collection<String> blacklist) {
// write your code here
return phones;
}
}
/* Please, do not modify this I/O code */
class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Collection<String> phones = Arrays.asList(scanner.nextLine().split("\\s+"));
Collection<String> blockList = Arrays.asList(scanner.nextLine().split("\\s+"));
Collection<String> nonBlockedPhones = CollectionUtils.filterPhones(
new ArrayList<>(phones), new ArrayList<>(blockList));
System.out.println(nonBlockedPhones.stream()
.map(Object::toString)
.collect(Collectors.joining(" ")));
}
}
